Pictures of adult skin rashes are available on WebMD.com, Healthline.com and MayoClinic.org. Rashes are irritations of the skin and are commonly red, itchy and painful. They can indicate a medical problem. Other causes of rashes include exposure to allergens or irritating substances, states Medline Plus.
A common type of skin rash is contact dermatitis. Other types of rashes include eczema, psoriasis, shingles and rosacea. Most types of rashes disappear quickly, while others last longer and require long-term treatment. Some types of rashes respond to moisturizing lotion, calamine lotion or an oatmeal bath. Acetaminophen or ibuprofen can relieve mild pain associated with rashes, according to Healthline.