Journalist Annie Lowrey has a rare disease that causes a near-constant itch that doesn't respond to most treatments. She ...

Sun allergy is a term that describes when the skin breaks out into an itchy red rash after a person spends time outdoors. Here’s what people need to know about this condition, how to tell the ...

But they also appear after a viral infection ... almost like a sunburn,” Walls says. For some, the rash is completely asymptomatic. But for others, it's very itchy, he adds.