Experienced and professional animal trainer provide their insights in answering this question :
A. Biting and chewing to the point of hair loss can be caused by a number of things. Allergies, skin infections, and even metabolic illnesses can all cause the skin to become bothersome, or hair to be lost. In some cases, the behavior of licking or chewing at the hair can become chronic, and lead to infections or sores on the leg.

It is best to have your sister bring her dog in to have the legs looked at. Your vet can check for any signs of infection, allergy or even external parasites and provide treatment for relief. If there is no apparent cause, your vet may also recommend a blood test to check for internal illness as the cause.

Until you can get to the vet, it is best to prevent the dog from licking or scratching at the area. An Elizabethan collar (cone) is best to stop the behavior and allow the legs to rest some until they can be examined. If there is any dirt or debris in the area, a warm clean washcloth can be used to keep the area clean and prevent secondary infection until it can be examined.

How to Identify Common Pet Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced pet care professionals :

Attention. Any behavior can become attention-getting behavior if the dog learns that they receive attention for engaging in it. Remember, even punishment is attention. Your dog may be looking for attention if they dig in your presence or have limited opportunities for interaction with you.
A well exercised, trained and happy dog is not likely to have to relieve stress or entertain herself by self mutilation. Whenever the dog begins to lick or chew herself, try making a very short, sharp, loud sound just enough to startle the dog into stopping and looking around to see what happened.
Dogs that chronically bite/chew/lick their paws or legs are experiencing more than just a typical itch. It could be that your dog has developed an allergy or is suffering from an insect/bug bite or a fungal infection.
When dog scratching gets out of hand, it is often the result of allergies to food or environmental triggers, including mold and pollen. Dogs may also develop a skin irritation called contact dermatitis when they encounter substances like pesticides or soap. Boredom or anxiety.
For Dogs Who Give Paw and Scratch

Totally ignore (no positive attention, no negative attention) any pawing behaviors taking place without being asked. Simply, turn your back and ignore if you`re standing or get up from the couch and leave if you`re sitting. Request your guests do the same.

What has been determined in recent years is that ripping this hair out can cause microscopic tears in the ear canal. If bacteria are present it`s possible for it to cause an ear infection in an injured ear. There are veterinarians who no longer recommend every dog that grows hair in the ear canal have it plucked out.
If you take good care of your pet`s wound and help them heal quickly then it`s very likely that their fur will grow back normally.
Anxiety is the most common cause of pulling out and eating hair in dogs. This type of behavior is almost always a result of a nervous or anxious behavioral problem. If your dog is stressed out about something, they turn to pulling their hair and eating it. The more anxious they get, the more hair they will lose.
Itchy skin and hair loss are two of the biggest indicators that your dog has an allergy. They could be allergic to certain ingredients in their food or environmental factors like pollen or dust mites. Your vet can conduct tests to determine whether your dog has food or environmental allergies.
Conclusion: Pawing means your dog wants your attention. If your dog puts their paw on you while you`re spending time together, it`s likely an expression of affection or the gestural equivalent of “pet me more!”
Flea allergy dermatitis, seasonal allergies or atopy, food allergies, contact dermatitis (e.g., soaps and perfumes), and sarcoptic mange (mites) are some of the most common causes of pruritus in dogs. “Pruritus due to skin disease is one of the most common reasons dog owners seek veterinary care.”
Because compulsive behaviors can cause serious damage and affect your dog`s quality of life, it`s important to do your best to stop your dog from chewing, licking, or scratching too much.
The constant pulling can cause strands of your hair to break or fall out. In time, the continuous pulling can damage your hair follicles. If you damage your hair follicles, your hair cannot grow back, so you develop permanent hair loss.
Yanking on a leash can give your dog whiplash; it`s never a good idea to jerk any type of animal`s neck quickly. Oftentimes, dogs don`t understand why their leash jerks their neck, so they become frustrated, depressed or aggressive. The best way to prevent neck, nerve and thyroid damage is to get your dog a harness.
Since we humans don`t have the natural instincts on how to correctly carry dogs by their scruff, we can end up easily causing pain or damage. Once a puppy is no longer a puppy, picking them up by their scruff is risky because they are much too heavy to have all that weight placed on their neck.
Dogs can ingest hair when grooming themselves, as well as by eating hair that they find in their environment. This hair cannot be digested, due to the presence of keratin (a fibrous, structural protein); therefore, it usually passes through the intestines and leaves the body in the feces.
Dogs need roughage in their diets and grass is a good source of fiber. A lack of roughage affects the dog`s ability to digest food and pass stool, so grass may actually help their bodily functions run more smoothly.
To best support your dog and healthy hair growth, feed a diet that`s rich in animal protein. The amino acids and fatty acids present in animal protein play an important role in hair growth and can be extremely beneficial if you want to help you rest regrow his coat. Plus, look for a blend that`s full of antioxidants.
“When done correctly, plucking removes the entire hair from the follicle, keeping it from growing back for up to 6 weeks. If you tweeze with skill in an area such as the eyebrows, it can give you more control than waxing,” Gonzalez says.
Plain Sugar-Free Yogurt: Feeding your dog plain yogurt might also offer relief from itchy skin.
Baking Soda becomes thick when mixed with water and it can dry out skin`s rashes. It is also an effective dog itching relief while decreasing inflammation and redness. Apply the mixture or paste to the itchy part and leave it for 20 minutes before rinsing it completely.
Oatmeal is an age-old remedy for our dry, itchy skin that happens to be safe for use on our canine friends too! In fact, most doggy hypoallergenic shampoos include oatmeal as an active ingredient to soothe and fight irritation. Start by grinding plain oatmeal into a powder to sprinkle in your dog`s warm bath.
Most dogs will inevitably encounter excessive itchiness at some point in their lives. In many cases, it will be annoying for your dog but not serious. That being said, some skin conditions will need to be seen by a veterinarian and will require treatment in order to prevent them from growing in severity.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Q. How do I determine how much my overweight pet should weigh?
ANSWER : A. There are many tools to determine overweight and obesity levels in pets. A new tool, morphometric measurements and body fat index, are available to accurately determine a pet’s ideal weight; this will allow an accurate determination of the amount of food a pet should receive to achieve weight loss. Feeding the correct amount will lead to greater weight loss success.

There are many weight loss food options to help pets reach their ideal weight. Your veterinarian can help make a ideal weight recommendation. Here are some tips to help your dog lose weight in a healthy and safe way:

1. Diet: Providing a healthy and well balanced diet is essential to your pet’s overall health. Finding the right food for your dog can be a challenging process. For those overweight animals many commercial dog companies offer weight loss diets, but it is important to evaluate food labels for adequate nutritional content.

You want to ensure you are not missing other essential vitamin or mineral content. Volume of food is also important and the amount of food that works for one breed of dog may not be the same for another breed of dog. Portion control as opposed to free-choice feeding can help your dog to drop a few unnecessary pounds.

There are also prescription weight loss foods designed by veterinary nutritionists, such as Hill’s r/d (http://bit.ly/1AoENSd). Some pet owners find that home cooking is the best option for helping to provide a well-balanced and realistic diet plan. There are websites such as balanceit.com that offers recipes to fit your dog’s specific needs. Consulting with your veterinarian or a veterinary nutritionist to find the appropriate diet is a great way to help your dog be as healthy as possible.

2. Exercise: Another great tactic for weight loss for your dog is exercise. Whether this is through running, walking or playing with a favorite toy all of these are wonderful types of exercise to help keep your dog at a lean and healthy weight.

For those pet owners with busy schedules utilizing professional dog walking services or playtime through dog daycare services is another option. It has been shown that those pet owners that exercise regularly with their pets generally live a healthier lifestyle.

3. Physical therapy: As animals age pet owners offer encounter their favorite canine having more difficulty walking and have a dwindling desire to play with toys. Physical therapy, specifically hydrotherapy is a wonderful way to help older and arthritic animals gain more mobility and lose weight. Hydrotherapy has been proven to have several therapeutic effects on the body including, muscle strengthening, relief of swelling, decreased joint pain, less stiffness in limbs, improved circulation, weight loss, and increased tissue healing to name a few. For more information on the benefits of hydrotherapy:
http://bit.ly/1w1qqoy

4. Veterinary visit and blood work: Weight gain can also be related to underlying health concerns such as hypothyroidism or other endocrine disorders. Scheduling a veterinary evaluation and routine blood work can be another important component in increasing the longevity of your dog’s life. Conditions such as hypothyroidism that predispose dogs to gain weight can be treated with a daily medication to improve hormonal balance. If feel that your dog is unnecessarily overweight there can be an underlying health condition that needs to be addressed.

5. Healthy treats: Pet owners love the chance to reward their favorite canine companion with treats and most dogs jump at the chance to consume these delicious products. The problem is many treats, which can include commercial dog treats or table scrapes can add many unnecessary calories to your dog’s daily intake. Reading labels and making note of the calories in these treats is an important component of understanding your dog’s overall health. Treats should not exceed more than 10 percent of your pet’s daily calories. There are healthier treats that can be offered to your pet to keep calories lower yet provide a fuller sensation. A pet owner can add steamed or pureed vegetables, such as carrots, green beans or sweet potato to add more fiber and thus a fuller feeling for your dog.

Q. Whenever I take my dog on walks he always barks at people and others dogs in my neighborhood. What should I do to resolve the problem
ANSWER : A. The very first thing to do is to make sure your dog is getting sufficient physical and mental exercise every day. A tired dog is a good, happy dog and one who is less likely to bark from boredom or frustration. Depending on his breed, age, and health, your dog may require several long walks as well as a good game of chasing the ball and playing with some interactive toys.

Figure out what he gets out of barking and remove it. Don’t give your dog the opportunity to continue the barking behavior.

Ignore your dog’s barking for as long as it takes him to stop. That means don’t give him attention at all while he’s barking. Your attention only rewards him for being noisy. Don’t talk to, don’t touch, or even look at him. When he finally quiets, even to take a breath, reward him with a treat. To be successful with this method, you must wait as long as it takes for him to stop barking. Yelling at him is the equivalent of barking with him.

Get your dog accustomed to whatever causes him to bark. Start with whatever makes him bark at a distance. It must be far enough away that he doesn’t bark when he sees it. Feed him lots of good treats. Move the stimulus a little closer (perhaps as little as a few inches or a few feet to start) and feed treats. If the stimulus moves out of sight, stop giving your dog treats. You want your dog to learn that the appearance of the stimulus leads to good things.

Teach your dog the ‘quiet’ command. Oddly, the first step is to teach your dog to bark on command. Give your dog the command to “speak,” wait for him to bark two or three times, and then stick a tasty treat in front of his nose. When he stops barking to sniff the treat, praise him and give him the treat. Repeat until he starts barking as soon as you say “speak.” Once your dog can reliably bark on command, teach him the “quiet” command. In a calm environment with no distractions, tell him to “speak.” When he starts barking, say “quiet” and stick a treat in front of his nose. Praise him for being quiet and give him the treat.

As in all training, always end training on a good note, even if it is just for obeying something very simple, like the ‘sit’ command. If you dog regresses in training, go back to the last thing he did successfully and reinforce that before moving on again. Keep sessions short, 15-20 minutes max, and do this several times a day.

Q. My dog licks his feet and legs and they are turning brown. He is a white dog. Can you help?
ANSWER : A. Licking the feet and legs can be caused by a number of things in dogs including allergies, illness or even stress behaviors. Allergies are the most common in dogs, with yeast infections coming in second. Allergies can cause the area to become red and itching, making your dog want to lick and chew on them. Over time, the area may become stained from saliva, especially in lighter or white-coated dogs. Yeast infections are also common between the toes, and may cause a smelly “corn chip” smell to appear near your dog’s feet. Again, dogs will attempt to lick and chew to relieve the itch. Keeping the feet clean and dry can help relieve both allergies and infections and pet wipes or a baby wipe of all paws when your dog comes in from outdoors may also help. Keeping your dog from licking the space with either dog booties or an Elizabethan collar is also good as it will prevent secondary infection and staining of the paws and legs. If your dog is determined to keep licking and keeping the feet clean and dry do not help, then your vet can help by providing a medication to treat any infection or provide relief of allergies.

Q. Rescued a dog almost two weeks ago, and now that her kennel cough is gone her personality shines!! No previous training, how should I start?
ANSWER : A. POST FOUR:

After your dog is familiar with the behavior you lured from scratch, and taught to your dog, you can start to use the “no-reward marker” I talked about. What you do is ask the dog to perform the behavior, and if the dog does not perform the behavior, you simply say your no-reward marker (choose one: eh-eh, hey, uh-oh, oops) show them the treat, put it behind your back, and BRIEFLY ignore your dog. Just turn your back for a second or two, before turning back to your dog and saying, “let’s try that again.” When you’re ready to start over with your dog, make sure you move around. If you are repeating the same cue while in the same position, while your dog is in the same position, you are likely to receive the same results. The more you move around, and start fresh, the better your chances are of having your dog listen to your cue the second time around. BIG rewards when they dog it successfully! Lots of praise and treats.

My no-reward marker is “hey.” When my dog does something wrong I say, “hey” and she immediately understands that she needs to offer a different behavior. This is clear to her. I don’t have to say it in a mean way, I simply say, “hey” in a normal tone of voice and she understands what the word means.

Once you’ve built up that connection and communication with your new dog, you can work on all kinds of fun behaviors! I personally enjoy the more zen-like behaviors: https://www.youtube.com/watch?v=ruy9UMcuGh8

I like to teach my dog fun tricks that offer her a “job” to do of sorts like object retrieval: https://www.youtube.com/watch?v=I4iertZSva8

(object retrieval training completed; what it looks like: https://www.youtube.com/watch?v=jx0Dml28FGY)

Scent-games are fun too! Very confidence building. Hide a REALLY smelly treat in a box, and place that box in a line of boxes. Let your dog go in the room while saying something like “search!” or “find it!” and watch them hunt for that smelly treat! Lots of rewards when they find it!

Q. My sister’s dog is digging the hair off from his legs. Any advice?
ANSWER : A. Biting and chewing to the point of hair loss can be caused by a number of things. Allergies, skin infections, and even metabolic illnesses can all cause the skin to become bothersome, or hair to be lost. In some cases, the behavior of licking or chewing at the hair can become chronic, and lead to infections or sores on the leg.

It is best to have your sister bring her dog in to have the legs looked at. Your vet can check for any signs of infection, allergy or even external parasites and provide treatment for relief. If there is no apparent cause, your vet may also recommend a blood test to check for internal illness as the cause.

Until you can get to the vet, it is best to prevent the dog from licking or scratching at the area. An Elizabethan collar (cone) is best to stop the behavior and allow the legs to rest some until they can be examined. If there is any dirt or debris in the area, a warm clean washcloth can be used to keep the area clean and prevent secondary infection until it can be examined.

Q. Want a pet cat companion for my dog Lucky, who is 5. The problem is that I’m somewhat alergic to cats. So, not sure what to do!
ANSWER : A. Dogs can make friends with lots of species, including cats! If you are heart-set on a cat, allergenic breeds are available such as hairless or lesser haired Sphinx and Devon-Rexes. However these breeds can be rare and hard to find at times. A short-haired cat that is brushed regularly may also cause less allergies. Many people with allergies are also able to take medications such as a daily allergy medication or spray like Nasocrom which can make living with a cat much easier.

If your dog is very friendly with other dogs, then getting him a dog friend may be an option! That would keep you from needing to get a cat and having an allergic reaction. Looking at your local animal shelter may help you to find a dog for adoption that is similar in personality and play style to your current dog. Many shelters will also let you introduce your dog to the one you are interested in adopting to see if they will be a good fit! If you can’t get another pet at this time, taking your dog to a local dog park or dog meetup can help him to get more social interaction and get out extra energy without the need for caring for another pet.

Q. My Beagle listens to me, but cries & whines when I’m gone & doesn’t listen to my parents. I adopted him just a couple days ago. Any tips for my folks?
ANSWER : A. I really highly doubt that your Beagle listens to you and has formed a connection with you in just a couple of days. It takes months to build up any kind of serious connection with your dog. You need to work on communication with your dog through training them to understand different cues. For instance the Leave-It cue: https://www.youtube.com/watch?v=R1TS5nA7z5Q

You have to work on bonding with your dog through mental stimulation. Training is very important. Luring each new behavior from scratch, and training using treats is how you form a strong bond with your new dog. No scolding is ever necessary… work on being calm, and positive, all the time.

If your dog is crying/whining when you leave, this may be separation anxiety. You’re going to have to separation train this dog from scratch. This dog needs to learn that separation can be a good thing! Tell your “folks” to NOT scold the dog when he is crying/whining after you leave, because that will make your dog MORE anxious when you leave next time. Your dog will be dwelling on the negative if your parents fuel your dogs negative feelings towards you leaving. FUN things should happen when you leave. Your parents should pull out the treats and start doing some basic obedience training with your dog. Your parents should stuff a Kong filled with awesome treats (peanut butter) and give it to him so he feels happy when you leave.

I have some excellent separation anxiety exercises you can work on. If you’d like, you can purchase a consultation with me, and I will go over how to separation train from scratch. It will make your dog comfortable being alone, guaranteed.

Read Full Q/A … : I Don't Like My Mother

Q. My 4 yr old male Catahoula Leopard Dog mix is a rescue. He’s become very possessive of me around larger dogs. How can I correct this behavior?
ANSWER : A. Sudden behavior changes can sometimes indicate an underlying health issue, so scheduling a checkup with your regular vet is always the first step. Once any health issues have been addressed, then you can address the behavioral ones. It is very common for dogs to become “possessive” of people or objects when around other dogs or people, and is called location guarding. Possession of objects or places can be a little easier to manage, however possession around other dogs can be treated as well. Working from a distance in a technique called BAT or Behavioral Adjustment Training may help. This technique involves your dog and another calm dog. Start off at a far distance and then move in until your dog becomes reactive or wary of the other dog. Move back a small amount and wait for your dog to become calm. If he shows calm behavior, reward with lots of praise, treats and love! If he becomes agitated or possessive, move back until he is calm, or stop the session completely and try again later. While this may take some time, it can help dogs learn that other dogs are not a threat to them or their people. Reading more information about BAT training or contacting a local trainer in your area can help with further advice and techniques!