Most dogs and cats show allergies through intensely itchy skin, often on their paws, on the belly, and where the legs meet the body. Most ear infections are secondary to allergies and many pets display their allergies primarily through their ears. Excessive scratching can lead to extremely irritated, broken, and infected skin. Pets often scratch or lick affected areas. Enzymes in saliva can stain the hair, causing a reddish discoloration after excessive licking. Chronic skin irritation can lead to skin changes such as thickening, hardening, or increased pigmentation.
It is important that bacterial and fungal skin infections, skin mites, and other possible causes of skin irritation be ruled out by thorough ... Continue Reading