Allergic dermatitis (atopy) is among the most common skin diseases seen in private veterinary practice. Atopy is a genetic disease in which the pet becomes sensitized to environmental proteins called allergens. Allergic dogs (and probably cats) develop allergen-specific IgE antibodies (and to some extent IgG antibodies as well.) These IgE antibodies are involved in Type I hypersensitivity reactions in the pet’s body that cause the typical clinical signs seen in allergic pets.

Breeds with a high incidence of allergies include Cairn terriers, shar peis, West Highland White terriers, Scottish terriers, Lhasa apsos, shih tzus, wirehaired fox terriers, dalmations, pugs, Irish setters, Boston terriers, golden retrievers, boxers, English setters, Labrador retrievers, miniature schnauzers, and Belgian Tervurens.

Allergies usually occur within 1-3 years of a pet being exposed to environmental allergens. Some pets do not show signs of allergies until midlife or later; others show signs as early as a few months of age. Many allergic pets have seasonal signs, itching only during the season when the specific allergens to which they are allergic are most prominent (usually spring and fall.)

Clinical signs include itchiness and occasionally redness. The skin appears normal except in chronic cases or in pets with secondary infections. For more information, see my book The Allergy Solution for Dogs.

Treatment Options (Always Consult Your Veterinarian)

Topical Decontamination – frequent bathing with organic shampoos specifically made for frequent, even daily bathing, like Dr. Shawn’s Organic Shampoos

Omega-3 fatty acids – (fish oil primarily, also flax oil): Dosed at 10 mg/pound of body weight 1-3 times daily. Natural or Hypoallergenic Diet.

Antioxidants – Antioxidants include vitamins A, C, and E, minerals such as selenium, and other substances such as coenzyme Q-10, bilberry, blueberry, resveratrol, OPC’s, etc., work by reducing cell-harming oxidizing chemicals released upon cell damage and death.

Herbs – alfalfa, burdock root, dandelion, Echinacea, feverfew, garlic, German chamomile, ginkgo biloba, goldenseal, licorice root, nettle, red clover, Oregon grape, yarrow, yellow dock.

Homeopathics – Sulfur

Homotoxicology – Psorinoheel, Schweff Heel

Author – Dr. Shawn Messonnier, DVM