Some antihistamines can cross the blood-brain barrier – a membrane that’s supposed to protect harmful substances from getting in - Getty If you’re blighted by hay fever or other allergies, you ...

Antihistamines are a widely used group of medications most commonly used to treat allergic conditions. Allergic conditions, such as allergic asthma, hives, and allergies themselves, occur n when your ...

Scientists believe that medication given through the nose has the potential to be more effective because it attacks or blocks ...

Up to 40 percent of people suffer from springtime allergies—and the culprit is more irritating than ever, according to Dr. Christina Ciaccio, chief of pediatric allergy and immunology at University of ...

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 ...