Why Is My Dog’s Mouth Swollen?

by | Last updated on January 24, 2024

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It can be an allergic reaction, dental issue, trauma, or a growing tumor

. Most commonly, acute (sudden) facial swelling in dogs occurs as a result of an allergic reaction. Facial swelling that develops more slowly may be in the result of a facial growth or tumor.

What can I give my dog for a swollen face?

Yes,

Benadryl

is safe for dogs. You can use it to treat facial swelling from food allergies or itchiness due to skin allergies. It can also reduce other allergy-related symptoms, including redness, hives, and inflammation.

How long does it take for dog face swelling to go down?

Facial Swelling and Hives in Dogs

The swelling occurs 30 minutes to a few hours after the exposure. A veterinarian will often give dogs with this reaction an antihistamine injection. Untreated, it may take

a day or two

for the swelling to subside.

What causes facial swelling in dogs?

While dogs can have allergic reactions to a multitude of things, including medications, pollen, dust and food, abrupt facial swelling after being outdoors is commonly caused by

a bee sting or insect bite

. Dogs can also experience a similar reaction to vaccinations, though this can occur whether they’re outdoors or not.

Why is my dog’s mouth swollen on one side?


Tooth or Gum Infections

An abscess in the tooth root can cause painful swelling on one side of the face. A gum infection can also cause facial swelling. Your dog will more than likely show signs of pain and may have difficulty eating as well.

Why does my dog have a lump on his jaw?


A sialocele is a condition of the salivary glands or ducts

. The condition appears as swollen structures in the neck near the jaw, under the tongue, or by the eye. It is a buildup of saliva that can often resemble a cyst and it is usually treated by surgery in dogs.

Is my dog having an allergic reaction?

Itchiness and Hives


If you notice your dog scratching a lot or see hives or redness on his skin, then he may have an allergy

. These reactions are common in all types of allergies. If they are the only symptoms you notice, you can wait a day or two before scheduling a vet visit.

Can I give my dog Benadryl for swollen face?

Vets commonly use it to treat environmental allergies and allergic reactions to insect bites or stings. It can also be used as a pre-treatment for possible vaccine reactions. But

if your pet is having an acute allergic reaction with facial swelling or difficulty breathing, take them straight to the vet

.

What does an abscessed tooth look like in a dog?

The tissue below the eye will usually become swollen and inflamed just before the abscess bursts. If you look inside the dog’s mouth, there will often be

swelling and redness on the gums around the affected tooth

.

Why is my dog’s bottom jaw swollen?

Dogs have several salivary glands located in the neck and area around the jaw.

Swelling of the salivary glands (sialocele) occurs when one (or more) of these glands leaks saliva into the tissue surrounding the gland

.

What does a cancerous growth look like in a dogs mouth?

Melanomas appear

pigmented or non-pigmented, and may be nodular or cauliflower-like in appearance

. These tumors may appear as swellings on the gums around the teeth or on the hard or soft palates. They frequently ulcerate (break open) and bleed. They may also become infected.

Why does my dog have a growth on his gums?

There are many kinds of tumors that can occur in a dog’s mouth. Sometimes inflammation and infection will cause swelling and redness of the oral tissues that could mimic a tumor.

Periodontal disease can also be a cause of gingival overgrowth

, which may look like excessive gum tissue growing up around one or many teeth.

What causes a dog’s snout to swell?

It can be

an allergic reaction, dental issue, trauma, or a growing tumor

. Most commonly, acute (sudden) facial swelling in dogs occurs as a result of an allergic reaction. Facial swelling that develops more slowly may be in the result of a facial growth or tumor.

What does a dog allergy look like?


a skin rash that is red or consists of small, red, raised bumps called hives

. nasal congestion. a runny nose and sneezing. itchy, red, and watering eyes.

What is the most common allergy in dogs?

The most common food allergens in dogs are

proteins, especially those from dairy products, beef, lamb, chicken, chicken eggs, soy or gluten (from wheat)

.

Can I give my dog Benadryl for swollen snout?


Benadryl is a relatively safe and effective medication for dogs when used according to the instructions of a veterinarian

. As with any new medication, always observe your dog closely after administration to make sure there aren’t any adverse reactions.

Diane Mitchell
Author
Diane Mitchell
Diane Mitchell is an animal lover and trainer with over 15 years of experience working with a variety of animals, including dogs, cats, birds, and horses. She has worked with leading animal welfare organizations. Diane is passionate about promoting responsible pet ownership and educating pet owners on the best practices for training and caring for their furry friends.