Levocetirizine, the active ingredient in Xyzal, is a modern antihistamine designed to bring fast, long-lasting relief from seasonal and year-round allergy symptoms. It works by blocking histamine ...

If your immune system overreacts to pollen or other allergens, a diet rich in compounds that boost immune health and reduce ...

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 ...

1. A histamine reaction that can be helped by allergy pills 2. Inflammation that can be helped by nasal sprays 3. Severe symptoms/asthma that can be helped by prescription medications, such as ...

People might not associate brain fog and fatigue with spring allergies, but these symptoms can make life just as miserable—or ...

Rebecca Seal explains why women in midlife can develop new allergies — and why you should avoid unreliable online tests ...

Prefer Newsweek on Google to see more of our trusted coverage when you search. "I didn't want to leave behind my entire life in the U.S., but I didn't feel like I had a choice," Bee told Newsweek, ...

Jurairat J. Molina, MD, is a board-certified allergist. She practices at StoneOak Allergy in San Antonio, Texas. Vitamin C, quercetin, and butterbur are supplements that help relieve allergies ...