Zyrtec (cetirizine) and Zyrtec-D (cetirizine and pseudoephedrine) are two OTC medications used to help relieve allergy ...

Increased sinus pressure from congestion just may be the reason behind your unexplained headaches. Sinus headaches are ...

If you have allergies, your body perceives pollen as an intruder. The natural immune response to fight back triggers a ...

Tree and grass pollen are at extreme levels, according to local pollen counts. Experts say climate change is to blame for ...

Longer growing seasons and increased pollen production driven by climate change could be aggravating your seasonal allergy ...

If you’ve sensed that your allergies are getting worse each year, it’s not your imagination: Allergy season in the US is ...

The spring blooms are delightful, but the allergies aren't. Here's what you need to know as pollen counts worsen this week.

When viral infections like colds or flu strike, they irritate the throat and nasal passages, resulting in symptoms such as a ...

Allergies are not watery eyes and a stuffy nose. They are reactions to substances that are triggering the body's responses to ...

Spring (read: allergy) season can make it difficult to say if a runny nose is the result of pollen or a virus – so I asked ...