Flea Allergy Dermatitis (FAD)

Flea Allergy Dermatitis (FAD) is one of the most common skin diseases in pets, caused by an allergic reaction to proteins in flea saliva. Even a small number of flea bites, or just one bite, can trigger a severe allergic response in sensitized animals. This hypersensitivity leads to intense itching, far beyond what would be expected from simple flea bites. Affected pets often develop red, inflamed skin, hair loss (especially around the tail base, inner thighs, and abdomen), scabs, and secondary skin infections due due to constant scratching and biting. Identifying and eliminating fleas through strict flea control measures is paramount to treatment. This often involves topical or oral flea preventatives for all pets in the household, along with medication to relieve itching and treat any secondary infections. Consistent flea prevention is key to managing FAD.