antihistamines

The sneezing that waits until you're in bed has a real mechanism behind it — three of them, actually, and they compound.

The exhaustion of fall allergy season has at least three sources, and the pill is only one of them. Here is how to tell which one is wearing you down.

An allergist and UK clinical guidance disagree on whether daily antihistamines like Zyrtec lose potency over time, and what to do if yours seems to.

For most people, Benadryl brings on sleep. For a smaller group, it brings on racing thoughts and restless legs instead, a documented reaction called paradoxical excitation.