Rash on the Dog’s Tongue: Causes and Treatment


The tongue, as much as the skin, are indicators of the dog’s general medical condition. If the dog is healthy, its tongue is pink and wet, has no pellicle, of normal size. Any changes suggest a pathological process. There are various possible causes: inadequate or unhealthy foods, bad environmental conditions, mating with infected individuals. If past experience is anything to go by, a rash on the dog’s tongue often occurs as a response to an allergy-causing agent (allergen). But there may other possible underlying conditions too. Guardians should know how to identify the causing factors. Usually the rash is treated at home, sometimes – without the help of a specialist is necessary.


The rash is a frequent companion of allergies. It often appears on the dog’s tongue. Possible causes may be food, medications, strongly smelling chemicals, plant pollen. And it is not a complete list of allergy causing factors in animals. Symptoms of an allergic rash are:

  • on dog's tongue rashswelling of the tongue;
  • pink tongue with a small red rash;
  • itching;
  • rashes may appear on other body parts too.

The treatment should begin with elimination of an allergy-causing agent and soothing of the itching. If the rash appears on the pet’s skin, a cool bath or a hypoallergenic ointment will ease the animal’s discomfort. Treat its tongue with a bandage dipped in baking soda solution. In cases where these measures are not effective, antihistamine is administered to the dog (diazolin or ¼ parts of suprastin may be suggested). If these measures prove ineffective, you should immediately contact a veterinarian.


Oversupply of vitamins in a diet of your four-legged friend can be just as harmful as their shortage. Some pets enjoy ‘vitamins’ and often beg for them. And we cannot resist, reassuring ourselves in the process that nothing terrible can come out of a couple of extra drops. But it can trigger unpleasant conditions. If the dog has balanced, high-quality dry food every day, it rarely needs any more vitamins. An oversupply affects the general condition of a pet this way:

  1. little rash on dog's tonguewatery eyes;
  2. mucous membrane dries out, the tongue becomes dry and develops small reddish pimples;
  3. rash appears on shoulders and paws;
  4. in advanced stages, the coat begins to shed.

The major condition for a successful treatment is a well-balanced diet and sufficient amount of water. If no signs of recovery are seen soon, contact your veterinarian.


In this case small light gray rashes appear on the dog’s tongue (along the edges and on the tip), which are in fact nematodes (round helminths). The rashes are triggered by their vital activity. Nematode eggs infiltrate the body of an animal through contaminated water or food or when the pet comes in contact with infected individuals. By way of preventative measures, use regularly special veterinary drugs.

Viral Infection

Canine viral papillomatosis has increased recently. It usually affects young animals (from the first to the fourth year of life). It does not appear immediately; therefore, a sick dog without external signs of illness can infect other animals. Small papilloma sprinkles on the inner sides of the cheeks, in the palate, on the tip and along the edges of the tongue. Most often they are detected by mere chance, when the dog damages the rashes with solid food and blood appears in the saliva.

In veterinary practice, this pathology is treated with autoimmune serum, which increases the resistance of the dog’s body to infections.

In advanced cases, chemotherapy with Vincristine or Cyclophosphamide can be prescribed. But the positive effect is not always univocal, as, even when curing the dogs from papilloma, this treatment brings down a heavy blow on its immunity system.

Neoplasm and Stomatitis

The red rash on the dog’s tongue, looking like separate red-colored pimples with a bluish or dirty gray tint, can be a big rash on dog's tonguemanifestation of noma. The rash quickly transforms into non-healing ulcers. The prognosis for this disease is extremely poor. The fatal outcome happens in a matter of days, or even hours. Fortunately, this pathology is a rare occasion.

Whitish pellicle and small vesicles with a clear liquid are manifestations of stomatitis. The disease occurs mainly due to an improper oral care. It should be processed with a cotton pellet dipped in salted boiled water. After opening the bubbles, treat the oral cavity with a weak solution of potassium permanganate.

If you want to get rid of the condition in a dog, do not forget to call the vet and ask for help in choosing a treatment program that can be carried out at home.

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