Antihistamines are medications that relieve allergy symptoms by blocking the effects of histamine. (Getty Images) When the sun is out and the grass pollen count is high, many of us reach for an ...

Allergies happen when your immune system overreacts to a normally harmless substance like dust or pollen. Hay fever, hives and anaphylaxis are all types of allergic reactions. Many of those affected ...

DEAR DR. ROACH: I am a 77-year-old woman in good health. I walk daily. The only prescribed medications I am on are two different eye drops for glaucoma. My eye pressure is under control; I have it ...

Spring has sprung and many people are welcoming longer days and more time outdoors. But for almost 1 in 5 Australians, spring also brings the misery of watery, itchy red eyes, a runny, congested nose, ...

A commonly-used over-the-counter medication that can provide allergy and cold relief or serve as sleep aids may increase a person’s risk of dementia. Antihistamines work to block the chemical ...

Zyrtec is a brand-name over-the-counter (OTC) medication used to treat allergy symptoms. Zyrtec is not known to raise blood pressure, but it may depend on which form of the drug you take. Zyrtec is an ...