Taking medication for an allergic reaction? You might face severely itchy skin as a side effect of Zyrtec or Xyzal, according ...

They're rare, but alcohol allergies can range from mild to life-threatening, says Samuels.

When the rash is in a clothing (or textile) distribution, it may be due to an allergy to dyes or formaldehyde resins used in the manufacture of the clothing.

Allergic to Everything — The Mysteries of Mast Cells How one of the oldest components of the human immune system can trigger a mysterious and little-understood syndrome.