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.
Infection with mange mites causes red, scaly skin that may or may not be itchy, depending on the specific type of mange mite involved. Dogs and cats can also develop non-itchy skin rashes from certain types of seborrhea. Treatment for skin rashes depends on the underlying cause and the severity of the problem. Hot spots and skin-fold infections are usually easily treated with cleaning and topical medications, although the underlying cause may still need to be addressed.