Experienced and professional animal trainer provide their insights in answering this question :
A. Your dog could have a scratch, an ulcer, an infection or an allergic reaction. I recommend taking him/her to a vet so they can examine it and possibly prescribe medication to make it feel better. Most eye problems will not go away on their own.

How to Identify Common Pet Problems ?

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

A dog`s swollen eye is not something to take lightly, as most eye infections will not go away without treatment. As soon as you notice your dog`s eye is swollen, you should bring them to the vet to get treated.
“The telltale sign of cherry eye or prolapse of the tear gland of the third eyelid is a fleshy pink swelling at the corner of the eye,” she explains. This bulge is typically in the corner nearest the nose and similar in shape and color to a cherry pit, hence the nickname. The condition can occur in one or both eyes.
Eye inflammation in dogs, also known as blepharitis, is a painful condition where the eye becomes reddened and swollen, usually as a result of allergies, an infection, injury, tumor or congenital abnormality. Other symptoms include rubbing, scratching, flaky skin and eye discharge.
Mild cases of conjunctivitis or allergies may be relieved with home remedies like warm compresses or saline solution rinses. However, if symptoms persist or worsen, it`s best to consult with a veterinarian.
Eye infections rarely get better on their own. Your pet needs to see a veterinarian right away. Not only can your pet go blind, but eye infections are very painful.
Eyelid swelling usually goes away on its own within a day or so. If it doesn`t get better in 24-48 hours, see your eye doctor. If you have a fever, vision loss, double vision, or if one or both of your eyes are abnormally protruding or bulging, you should see a doctor right away.
Any breed of dog may develop viral conjunctivitis if they encounter viruses that cause inflammation in the eye membranes. These viruses are usually quite contagious and can take 3 to 4 weeks to fully resolve.
If your dog`s eyes are weeping, watering more than usual, or you notice yellow, green or white coloured discharge, they may have an eye infection. Other signs of eye infections in dogs include pawing at their eye, blinking more than usual, swelling, redness and squinting.
Most dogs with pink eye will make a full recovery, but others may experience secondary symptoms for the rest of their life, leading to a permanent loss of vision in rare cases. Depending on the cause of the condition, your dog may require lifelong therapy.
Dogs occasionally develop a red eye. The redness may be in the white of the eye, in the clear part of the eye called the cornea, or within the eyeball. There are many causes of a red eye, but all ocular diseases should always be considered an urgent matter, and be checked immediately by a veterinarian.
Allergies are by far the most common cause of eye redness in dogs. If your dog`s eye appears red and you see other clinical signs such as sneezing, runny nose, or watery eyes, then allergies are one potential culprit. Some dogs have seasonal allergies, and some have allergies that last all year long.
Common Causes of Eye Infections in Dogs

Bacteria (canine brucellosis, leptospirosis, canine ehrlichiosis, or Lyme disease) Fungus spores. Irritants or allergens, such as smoke or shampoo. Foreign matter or debris (dirt, grass seed, or even your dog`s own hair)

There are many causes of eye infections in dogs. If your canine pal is exhibiting discomfort, redness, or even sensitivity to light, it`s a good idea to consult your veterinarian. Left untreated, eye infections can spread or lead to vision loss.
Many eye infections, such as styes, can go away on their own or with at-home treatment such as warm compresses. It is important to see a medical professional, however, for a proper diagnosis. Some infections require prescription eye drops or ointments for treatment and can get worse if left alone.
Rinse your dog`s eye and eye area with simple saline solution, which can be purchased from a veterinarian or pharmacy, or made with a teaspoon of salt water in a cup of warm water. Carefully instill into the corner of your dog`s eye and dip a cotton ball in the solution and wipe away discharge from around the eye.
Your eyes become swollen when fluid builds up in the layers of tissue surrounding your eye. This causes your eyes and eyelids to swell. Most of the time, eye swelling will go away on its own within a day. But if the swelling lasts over a day, you need to treat it.
Eyelid swelling usually goes away on its own within a day or so. If it doesn`t get better in 24 to 48 hours, you should call your primary care physician or see your eye doctor. Your doctor will ask about your symptoms and examine your eye and eyelid.
Typically, eye swelling in your upper or lower eyelid is just an uncomfortable annoyance that will go away on its own within a day. But if the swelling lasts longer, it`s important to treat it because some problems can quickly damage your eyes.
Bloodshot Eyeballs and Swollen Eyelids

Dogs with pink eye typically develop physical symptoms such as a pinkish color to the eye and fluid discharging from the affected area. The eyeball may appear to be bloodshot, and the eyelid may become swollen, even to the point where the dog cannot open its eye.

Signs that a dog eye ulcer is healing include decreased redness and squinting, and the dog just seems more comfortable. Additional signs a dog eye ulcer is healing include: Third eyelid goes back down. Eye no longer looks white.
One of the easiest home remedies for eye infections is chamomile tea. It`s affordable on any budget and can be found in any grocery store. Steep a chamomile teabag in hot water. Once cooled, hold the bag on your dog`s infected eye for at least 5 minutes.
Redness in one or both eyes. Itchiness in one or both eyes. A gritty feeling in one or both eyes. A discharge in one or both eyes that forms a crust during the night that may prevent your eye or eyes from opening in the morning.
Your dog`s conjunctiva can become itchy and turn bright pink or red when it is infected or irritated. If you`ve ever had pink eye, you know how uncomfortable this can be for your pooch. If left untreated, conjunctivitis can damage your pet`s eyes.
The third eyelid has a cartilaginous frame and a gland at its base, which is responsible for producing 30-50% of the aqueous tear film. The gland is very loosely attached to the third eyelid and in some dogs it pops up from behind the edge of the third eyelid, looking like a red cherry hence its nickname `Cherry eye`.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Q. Husband shamed dog for having an accident inside, and now she won’t poop when he takes her out. Can we fix this? He realizes he erred
ANSWER : A. Good on your husband for realizing that scolding is not the way to potty train! Hopefully these tips can help both him and your pup get back on the right track and make pottying outside successful.

If your dog is still a puppy, that is good news as you may be able to more easily time your potty outings with your dog’s schedule. Even if your dog is older, this schedule may help. Dogs generally have to go potty about 15 minutes after eating, drinking, waking up or playing. Knowing this, get your husband to start taking out your puppy at these key times, so puppy gets used to going out with him, and the urge to potty may be higher than any fear to go. If the potty is successful, have your husband reward the dog with a favorite treat! For bowel movements, dogs may take a little more time, and you may have to stand outside for a while (sometimes even 10 minutes) to give your dog a chance to go. If she doesn’t go, take her back inside and play some, then try again in about 15 minutes. Again, a success equals a treat which most dogs will like right away!

For any indoor potty accidents that occurred, an enzymatic cleaner is great for cleaning up urine and stool. Not only does it remove the stain and smell, but it breaks down the enzymes in the urine and stool your dog can smell, which may deter her from going potty there again.

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. 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. Yesterday we noticed the reddish pink part of my dogs eye swollen. We hoped it would go down overnight but it didn’t. What do I do?
ANSWER : A. Your dog could have a scratch, an ulcer, an infection or an allergic reaction. I recommend taking him/her to a vet so they can examine it and possibly prescribe medication to make it feel better. Most eye problems will not go away on their own.

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. 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 dog keep hacking like a cough or something in her throat, what can I do?
ANSWER : A. Hacking and coughing can be caused by a number of things ranging from foreign bodies such as twigs stuck in the mouth or throat, to infections or illnesses such as Bordetella or Kennel cough, common in dogs that frequent kennels, dog daycare or dog parks. In older dogs, heart and lung issues can also be indicated by a cough that does not go away.

If you think there may be a foreign object stuck in your dog’s throat, you can sweep a finger gently through the back of the mouth or throat if your dog will let you. If something feels stuck and is not easily moved by the finger, it is best to contact your vet to have the object safely removed. This usually requires sedation so that your dog does not become panicked or move, causing the object to become further stuck or cut the throat.

If your dog is showing other symptoms of illness in addition to the cough such as runny nose or eyes, fever, lethargy or changes in appetite, it may indicate a viral or bacterial illness such as kennel cough. These are usually treated with a cough medication in severe cases, plus rest and treatment of any additional symptoms until the condition improves. In bacterial causes, antibiotics may also be given to help your dog feel better.

If your dog has a constant cough that does not go away, or has had changes in ability to exercise, breathing, or appears to have swelling around the chest or abdomen, in may indicate a lung or heart issue. Your vet can thoroughly examine your dog for any signs of heart or lung problems and can then offer care as needed depending on the cause.

Q. I was told by my vet that my dogs cherry eye was caused by something hitting his eye when he was poking around under a bush. I was told surgery needed
ANSWER : A. Prolapsed gland of the eyelid refers to a pink mass protruding from the animal’s eyelid; it is also called a “cherry eye.” Normally, the gland is anchored by an attachment made up of fibrous material. The most common sign of “cherry eye” is an oval mass protruding from the dogs’s third eyelid. It can occur in one or both eyes, and may be accompanied by swelling and irritation. He may have acquired it by getting an injury to his eye but this isn’t the case sometimes. Sometimes there is a weakness in the fibrous attachment.

The veterinarian will review the mass in the dog’s third eyelid and determine if there is an underlying cause for the condition. The diagnosis of the prolapsed gland could be scrolled or everted cartilage in the third eyelid, abnormal cells in the third eye, or a prolapse of fat in the dog’s eye.

Treatment often includes surgical replacement of the gland in the dog’s eye, or removal of the entire gland if the condition is severe. Conversely, if medications are recommended, they are typically topical anti-inflammatory drugs that are effective in reducing swelling.