which of the following causes a red, streaky, or patchy rash where the substance has touched the skin?
Itching of the skin in exposed areas is a common symptom. In the case of an allergic dermatitis, itching can be severe. Dermatitis caused by an irritant may also cause burning or pain. Allergic dermatitis often causes a red, streaky, or patchy rash where the substance touched the skin. The allergic reaction is often delayed, with the rash appearing 24 â 48 hours after exposure. Irritant dermatitis often shows as dry, red, and rough skin. Cuts (fissures) may form on the hands.