Experienced and professional animal trainer provide their insights in answering this question :
A. It;s probably a hot spot. You should see a vet to confirm that and start proper treatment. You should stop the pet from licking his paw ( by putting a dressing or elisabeth collar.

How to Identify Common Pet Problems ?

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

It is a symptom caused by dry skin, allergies, parasites, or other underlying conditions. Anxiety and boredom can cause dogs to lick, chew, and bite as a response. Changing your dog`s diet may be the key to stopping obsessive licking behavior. Fatty acid supplements can help ease pain and itching from dry skin.
A lick granuloma, also known as acral lick dermatitis, occurs when a dog obsessively licks at an area, often on a lower limb, most commonly the wrist or carpal joint of the front limb. These dogs find a spot to lick and start a cycle of self-trauma, inflammation, and infection.
For dogs, licking wounds is like you rubbing your head if you hit it. The nerves used to transmit the rubbing sensation block the feeling of pain or soreness. And canine saliva does have some mild antibacterial effect. For wild or feral dogs licking is probably beneficial in cleaning a wound.
Dogs will lick their lips non-stop as an appeasement gesture when feeling threatened, anxious, or nervous or when they experience a health-related problem such as nausea, oral discomfort, allergies, or internal pain. According to veterinarian Dr.
Dogs may lick because they like the salty taste of their owner`s skin, or as a sign of affection, or out of habit and boredom. Licking can also be calming or soothing to some dogs, much like when people receive a relaxing massage, or a nervous habit, like biting your finger nails.
Do not use rubbing alcohol or hydrogen peroxide as these can damage the tissue and delay healing. Cover up the wound with a bandage. Apply a small amount of antibacterial ointment and cover the wound with a piece of sterile gauze or other bandage. Use the elastic tape to hold the bandage in place.
In dogs, most granulomatous or pyogranulomatous skin lesions appear as papules, nodules, and/or plaques. The lesions may be solitary or multiple, and localized or generalized. They also can be alopecic or haired, and ulcerated, firm or fluctuant, and can vary in size from a few millimeters to several centimeters (4,5).
There is nothing in a dog`s saliva that can make wounds heal faster. They don`t heal their wounds by licking; they simply keep them clean to prevent infection. It is important to remember that dogs in the wild can easily succumb to infected wounds – and they often do.
Licking might offer some protection against certain bacteria, but there are serious drawbacks to letting your dog lick wounds. Excessive licking can lead to irritation, paving the way for hot spots, infections, and potential self-mutilation. Licking and chewing can also slow healing by reopening wounds.
As a way to calm themselves and release hormones, dogs may sometimes stick their tongues in and out rapidly. If so, your dog may be feeling nervous or excited. If you suspect this, try to identify what is causing your dog to be nervous or ecstatic and find ways to calm them down.
Some dogs simply do not get enough physical and mental stimulation. Bored dogs tend look for ways to entertain themselves, and chewing is one option. To prevent destructive chewing, be sure to provide plenty of ways for your dog to exercise his mind and body.
Nausea. If your pet is licking their lips or the air, carpet, or bedding, or if they are eating grass, this could be a sign they are nauseous. You might also see signs like drooling, vomiting, diarrhea, decreased appetite, increased stomach noises, or lip-smacking.
Bitter-tasting topical solutions are sometimes applied to discourage licking. Most treatments that are applied to the lesion are aimed at altering the sensation in the skin. Agents used include corticosteroids, dimethyl sulfoxide DMSO), capsaicin, antiinflammatory drugs, and antihistamines.
The most common reason dogs lick their legs is because of some kind of allergy. Allergies can be seasonal or environmental. Seasonal allergies are typically caused by tree and plant pollen. Spring tends to have the most pollen in the air, but dogs can experience seasonal allergies any time of year.
Affection – Licking is a sign of affection. Your dog might lick your hands and face because they love you! Licking might feel good to your dog as it can release endorphins. Some experts also say that in addition to affection, licking is a sign of submission.
Savlon`s Antiseptic cream is a form of topical medication that can be used for minor-wound care and cuts. It helps with the healing process and prevents infections from developing. If there is a scrape or cut on your dog`s skin, you should be able to use this over-the-counter antiseptic cream as a one-off.
It`s gratifying to know that you want to help your dog`s skin issues by applying Vaseline to their cuts, scrapes, and wounds, but it`s a completely synthetic material, and it`s no good for them.
Vaseline does not have any antibacterial, soothing or healing properties. If you`re in a pinch it won`t hurt, but in the long term, there are more beneficial products formulated specifically for dogs that are safer to use.
Should I cover a lick granuloma? If you cover the lick granuloma, your dog may start licking another spot and cause a secondary granuloma. But once you start treating the wound, you`ll want to cover it to protect the remedy. You can apply a light, non-stick bandage over the wound, taking care not to make it too tight.
The treatment of lick granuloma will depend on your dog`s condition and the cause of the acral lick dermatitis. Deep infections often require six to eight weeks of oral antibiotics. Topical and oral steroids can help break the inflammatory cycle, and anti-anxiety medications can be tried.
Alternatives to the “cone of shame” are inflatable collars, soft E-collars and neck brace collars. Try covering the wound with soft fabric secured by medical tape to prevent licking. Keep pets busy with other fun things to distract them from licking wounds.
Can You Put a Band-Aid on a Dog? Putting a bandaid on a dog is not recommended as the adhesive can cause skin irritation and infections. Instead, try using non-stick pads or gauze and tape to protect the wound. Seek advice from your veterinarian for proper wound care.
Distract them – Try giving them something else to do that stops them licking, such as a chew toy or a food puzzle. Training – Try training them to sit, or teach them to do something that redirects their licking and is rewarded by your affection and attention, such as giving you their paw or rolling over.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Q. My dog has no fleas, but is scratching and licking continually. He has been through a round of prednisone and it hasn’t helped. What can I do?
ANSWER : A. Itching can be caused by more than just external parasites, and if your dog is already on a flea medication, then it is possibly not the case. Itching can indicate anything from allergies to even minor skin infections causing problems. If your dog has been treated with prednisone (a steroid that inhibits the immune system) and it did not help, then looking at other options may help.

Food allergies are very common in dogs and can present with itching and licking all over the body rather than on just one spot. Common food allergens include ingredients such as wheat, corn and soy products, however dogs can be allergic to almost anything! Starting a food trial of an allergen-friendly diet from your vet or pet store that avoids these common ingredients may help. The food should be switched over a period of 7-9 days and then given about a month to decide if it is helping.

Small skin infections or yeast in the skin can also cause itching, however this itching is often more specific to a certain area of the body (such as the toes, or base of the tail). Your vet can perform a skin scraping of the area to be cultured at a lab to look for any yeast or bacteria. If they are present, a medication given either orally or placed on the affected area can clear up the infection.

In some cases, licking and chewing can actually be due to a boredom or anxiety behavior. Dogs may lick one spot obsessively to the point of creating sores or wounds in the area. Stopping your dog from licking and chewing either through the use of dog booties, no lick strips, T-shirts or even Elizabethan collars can break the habit and give the area time to heal. Licking and chewing can also cause the spread of bacterial infections so should be deterred even if not behaviorally caused.

Q. My 10 yr Chow mix chews a sore on her front leg unless we keep a “cone collar” on her. What can we do?
ANSWER : A. Lick Granulomas (chewing sores on body parts) are very common in dogs and can be triggered by an initial health event, and then become a behavioral issue. Breaking the “habit” of licking can be hard at times, and takes a lot of time and patience. It is also a good idea to make sure any initial or underlying problems in the area (such as infections or parasites) is cleared up.

While the cone or covering the area with long socks if on the forearm or foot is a traditional method of breaking the habit, there are new products out called “no lick strips” which can be applied onto a bandage over the affected area. These strips utilize a minor form of positive punishment- when the dog licks the strip he gets a minor electrostatic shock or bad taste in his mouth, deterring him from continuing. The strips have had good success with use when compared to just using an Elizabethan collar.

Treating any underlying stress or anxiety can also help to decrease licking behaviors. Calming medications and treats, removing the stressors, providing a safe place for your dog to “hide” during stress or anxiety, or even using calming pheromones can all help with stress reduction.

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. Early in the morning she goes licking everything, the bed, pillow and all. Tried giving her water but refuses to drink. Any advice?
ANSWER : A. Licking can sometimes be medical or behaviorally caused. As with any sudden new behavior in your pet, it is a good idea to schedule a wellness exam with your vet to make sure there are not any health issues causing it.

Behaviorally, licking can be an anxiety-related behavior, and may become habitual to your pet. If something stressful is happening in the morning such as people going to work, kids waking up and being noisy, or new routines, it may have caused a sort of “ritual behavior” from your pet in the form of licking. Identifying the stressor may help to break the habit.

Giving your pet a calm place to relax in the morning may help, as may providing a pheromone diffuser to help during any stressful transitions. These release a calming pheromone that can help reduce stress-related behaviors. Also offering something GOOD to lick such as a Kong filled with peanut butter, or an ice cube to move around the house may keep her occupied and licking that instead of your furniture.

Q. My dog keeps licking himself in the same area, what does this mean?
ANSWER : A. Excessive licking in one area often leads to a condition called Acral Lick Dermatitis or Lick Granuloma. By constantly nibbling on one spot, which is usually on one of front legs, dogs can cause skin irritation and inflammation and not uncommonly skin infection.

There is a long list of possible causes of this problem. In many dogs this is purely a behavioral issue related to anxiety, boredom or stress. Dogs with joint pain like to lick over the painful area to alleviate pain. Skin allergy or infections, skin foreign bodies predispose dogs to Acral Lick Granuloma as well. Finally, low thyroid hormone level is believed to play a role in developing Lick Granuloma.

Treatment is often long, and close cooperation between the owner and the vet is required. The effort should ultimately be directed to identify and treat the underlying cause.

Read Full Q/A … : Excessive Dog Licking

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. Why does my pup lick everything?
ANSWER : A. Puppies are very much like babies and young toddlers, and will explore the world with their mouths. This may include chewing objects, or licking them. Puppies and other more submissive dogs may also lick people as a way to “appease” them and try to gain favor. If your dog is licking objects, then using something such as a no-lick spray and providing appropriate other toys to explore can help curb the behavior. If you are the one being licked, then ignoring your dog or getting up and moving away when the licking begins can help stop the behavior. Be sure, however, to still give your pup lots of praise when NOT licking!

Q. My Bulldog puppy growls, barks and even tries to bite me when I say “no” to him. What can I do?
ANSWER : A. First, avoid scolding him and acting aggressively towards him if you don’t want him to be acting aggressively towards you. There are other methods you can use to communicate to your dog that you don’t want him to continue doing what he is doing. I recommend you stop telling him “no”, scolding him, or raising your voice at him. Everything coming from you should be 100% positive and 100% calm.

Try to figure out ways to clearly communicate what you want to your dog. If you want your dog to leave something or someone alone, I strongly suggest teaching your dog commands like “leave it”. Here is a link to a video in which I explain how to do it:

www.youtube.com/watch?v=R1TS5nA7z5Q

Another thing I suggest you use is a no-reward marker. This clearly communicates when your dog has done something wrong. No-reward markers have to be introduced during your training sessions. You should be doing at least three training sessions per day, that are something like 3-10 minutes long (working on different things each training session). If you are teaching your dog something BRAND NEW, do not use the no-reward marker, as you do not want to discourage your dog from performing behaviors for you. Use the no-reward marker for known behaviors only. Here is another helpful video about this:

www.youtube.com/watch?v=sdU5a6fXKlg

Lure each new behavior (as shown in the video) using high value treats. Let’s say you’re working on “down” which is a behavior your dog knows fairly well. Present the treat to your dog. Ask your dog to “down” (only ask once). If he does not go “down” immediately, say, “uh-oh” or “eh-eh” in a gentle tone, and then place the treat behind your back. This communicates to your dog that they did something to make the treat go away.

After you place the treat behind your back to show your pup “that was wrong” you need to communicate to your pup “let’s try again” by getting your pup to walk around for a second, and then start the behavior all over again. If your puppy is very young, chances are you haven’t taught him a solid “down” behavior yet. So, as I said, do not use this method until you have lured each new behavior as shown in the video.

This is the order in which you should teach behaviors: Lure using a high value treat as shown in the video. After a few successful food lures, lure with an empty hand. If the pup is successful with the empty hand lure, reward with lots of treats. If the pup is unsuccessful, then go back to food-luring a couple more times. After a few successful empty-hand lures, you can begin to add the cue. Say “sit”, then lure with an empty hand, and then reward. Once your pup understands the cue, begin to work on the no-reward marker.