Learn when rashes signal medical emergencies. Color, location, and symptoms reveal dangerous conditions needing urgent care.

Signs of an allergic reaction include a rash, itching, blisters, and swelling. People with eczema or other skin conditions may be more likely to develop a sunscreen allergy. If you are aware of ...

Poison ivy, oak and sumac all can create itchy rashes from urushiol. What you need to know before the rash starts.