This common over-the-counter drug could be linked to dementia - Antihistamines used to aid sleep and relieve nasty allergy ...

Still, I didn't think my issues were serious enough to warrant a doctor's visit (and didn't want to deal with the hassle of ...

Diphenhydramine is the active ingredient in countless over-the-counter medications. But experts say there are serious risks ...

“Reported cases were rare but sometimes serious, with patients experiencing widespread, severe itching that required medical ...

Two antihistamines, including Zyrtec, are under warning by the FDA after people reported “severe itching” after ceasing ...

FDA warns of severe itching risk when stopping long-term use of allergy medications cetirizine and levocetirizine, affecting ...

Allergies affect millions of people worldwide and can range from mild irritations to severe, life-threatening reactions.

Discover commonly overlooked causes of allergic reactions and rashes, from hidden household allergens to unexpected food ...

It's not always easy to tell the difference between a cold and allergies, including seasonal allergic rhinitis or "hay fever.

Distinctive whistling sounds during breathing and wheezing may signal serious allergic reactions that require prompt medical ...