Canine Skin Itching

Pruritus can make a dog miserable.

Canine skin itching (pruritus) can be miserable. A dog with skin issues can itch, scratch and lick constantly to provide relief. There are several reasons why a dog may itch, and diagnosing the underlying cause helps to determine the proper treatment.

About

Pruritus is the medical term for a condition that causes a dog's skin to itch. The condition arises when a chemical reaction takes place on the skin, triggering nerves to transmit a signal to the brain to itch. As the dog scratches, the reaction occurs again and the itch persists.

Causes

The primary causes of canine skin itching are allergies and parasites, although pruritus also can be attributed to a bacterial or yeast infection. According to Merrimackvet.com, a metabolic disease like Cushing's syndrome and hypothyroidism may also cause a dog to experience itchy skin.

Symptoms

The most obvious symptom of pruritus is itching, in addition to scratching and biting of the dog's skin and coat. Petplace.com says lesions may form on the dog's skin when itching persists for more than a day. Hair loss is also possible, along with redness, inflammation and general discomfort experienced by the dog. You may find the dog licking and biting his feet and paws because of pruritus. Petplace.com recommends seeking veterinarian care when these symptoms persist.

Diagnosis

A veterinarian usually performs a complete exam of the dog and evaluates the dog's medical history. He may take a skin sample to look for parasites, such as mites and fleas. If allergies are suspected, he may recommend a skin test or blood test to identify possible allergens. A blood test also may be done to check the dog's hormone levels for any irregularities.

Treatment

Petplace.com notes the best remedy for skin itching is treating the main cause. However, until the cause can be diagnosed, temporary relief is possible. Treatments such as antihistamines, fatty acid supplements, corticosteroids and topical creams, lotions and shampoos can prevent the chemical reaction, reduce skin irritation and minimize the itchy sensation.

References

• Merrimack Veterinarian Hospital: Causes of Canine Pruritus (Itching)
• Pet Place: Pruritus (Itchiness) in Dogs