Allergies. An allergic reaction is among the most common causes of itchy hands and feet. It could result from something you eat or touch. The response seen or felt can be characterized as another variant of eczema known as allergic contact dermatitis.
Bullous pemphigoid is an uncommon skin condition that affects dogs, and is characterized by the appearance of fluid or pus filled blisters, and severe open sores on the skin and/or mucus-lined tissue of the mouth.ullous pemphigoid is found in two forms: the common blister (bullous) form and the relatively rare long-term (chronic) form. The bullous form is characterized by open sores, short-term blisters, and circular lesions on the top layer of skin.
Dermatitis can be caused by dog shampoos or other fur treatments not formulated for a puppyâs sensitive skin. A young dog can be allergic to fleas and mosquito bites. The bite of a flea itself is not what causes the allergic reaction, but the saliva from the flea. Internal parasites often cause hair loss in puppies. Mites can cause a dog to have sarcoptic mange. Ringworm, a type of fungus, can cause hair to fall out in round patches. Hair loss from internal parasites can cause the surrounding skin to become very itchy or irritated.