Fleas are a common external parasite that can cause skin problems and allergies in dogs. When a dog is infested with fleas, they can experience intense itching and discomfort.Some dogs may also develop an allergic reaction to flea bites, known as flea bite allergy or flea allergy dermatitis (FAD). Flea bite allergies occur when a dog’s immune system overreacts to the proteins present i...
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