IF you love a bit of sun, you might know to check your skin for worrying moles, blemishes and marks. But did you know that ...

DENVER — An unusual surge of dust blowing into Colorado this week is irritating eyes and sinuses across the state — even for ...

Beyond the classic symptoms of watery eyes and sniffles, there are more unusual ones, which can be mistaken for other things.

Biphasic reaction: In a biphasic reaction, symptoms go away for an hour or more but then return without another exposure to the allergen. The second reaction can happen within 72 hours of the first.