An antihistamine is a type of medicine used to treat common allergy symptoms, such as sneezing, watery eyes, hives, and a runny nose. More than 100 million Americans suffer from some type of allergy ...

Antihistamines are a class of drugs that help to treat the symptoms of various allergies. The main difference between first-generation and second- and third-generation antihistamines is that the ...

If you’re a spring or summer allergy sufferer, you’ve probably powered through your fair share of antihistamines by now. (And if it’s fall pollen that stuffs up your sinuses, perhaps you’re stocking ...

Medications used to treat allergy symptoms can lead to dry eye. However, an eye drop form of antihistamine may be the best option to avoid this side effect if you’re concerned about dry eyes. Many ...

Like most allergy sufferers, I rely on medication to manage my symptoms. But antihistamine side effects—some of which may be unexpected—can make taking these drugs a complex experience. Of course, all ...

Taking too much antihistamine can lead to adverse side effects and a potential antihistamine overdose. Signs may include fast heart rate, fever, and dilated pupils. People should follow the dosage ...

Though many people think of allergies as only being triggered in the fall or springtime, the reality is that seasonal allergies often affect people year-round, including winter. Because some plants ...

Stress triggers histamine release, which can cause itching, redness, and hives in some people. Can over-the-counter (OTC) antihistamines provide relief? Histamine is a key chemical involved in ...

Different medications can treat allergies, including steroids and allergy shots, but one of the first things to try is an antihistamine. These are over-the-counter (OTC) and prescription medications ...

A new study has found direct evidence that an over-the-counter antihistamine can repair the protective nerve sheath that’s damaged in people with multiple sclerosis. The researchers also identified a ...

Alcohol and antihistamines can cause similar side effects, so taking them together can increase your risk of accident or injury. However, some types, like nasal sprays, may have less interaction when ...

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