Natural antihistamines such as black pepper extract, vitamin C, butterbur, and quercetin may help provide relief for allergies by lowering inflammation.

Azelastine (Al) (az-eh-LAST-een) has been around a few years. It was patented in 1971 and came into medical use in 1986. So, ...

According to a new study, a common over-the-counter allergy nasal spray containing the antihistamine azelastine was shown to significantly reduce the risk of COVID-19 infection in healthy adults.

A nasal allergy test showed strong diagnostic performance, with sensitivity exceeding 75% and specificity approaching 90% for ...

An over-the-counter nasal spray for allergies could actually protect you from catching COVID, a recent randomized trial found ...