The websites for Mayo Clinic and MedicineNet both feature slide shows with images of various types of dermatitis, including severe dermatitis. Dermatitis is a term referring to a range of skin disorders characterized by itching, redness and, at times, open sores, explains Mayo Clinic.
Among the pictures of dermatitis displayed by Mayo Clinic are photos of statis dermatitis, which is typically a result of varicose veins; allergic contact dermatitis, which is caused by touching an allergen; and irritant contact dermatitis, which is caused by contact with harsh substances. Allergic contact dermatitis is also caused by poison ivy, explains Mayo Clinic. MedicineNet offers photos of juvenile plantar dermatitis, dermatitis medicalmentosa and cercarial dermatitis, which is also known as swimmer's itch, states MedicineNet.