In TODAY.com's Expert Tip of the Day, a doctor reveals the important clues about your health that can be found in your snot.

You've been through winter lurgies and escaped the start of spring free of hay fever. Now you wake up with a sniffle you ...

First, you’re not alone. Up to 80% of American adults have the herpes simplex virus (HSV-1), which can cause cold sores (also known as fever blisters), according to Johns Hopkins. The viral infection ...

Cold sores, also known as fever blisters, can appear on your mouth or lip and are usually caused by oral herpes or herpes simplex virus type 1 (HSV-1). “It’s extremely ubiquitous,” says Alexandra ...

DETROIT (FOX 2) - Symptoms of the omicron COVID-19 variant may make you think you have the flu or a cold. Dr. Sandeep Sohal, an infectious disease fellow with Beaumont Health, said people are ...

A runny nose, headache, or sore throat could be symptoms of either COVID-19 or a bad cold. Experts said it's tough to know the difference between the two from symptoms alone — so don't self-diagnose.

The authors do not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and have disclosed no relevant affiliations beyond their ...

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Seasonal allergies are rising as spring weather returns to the Chicago area, but as the coronavirus pandemic continues to grip both the city and Illinois, how can you tell if your symptoms are pollen ...

While hay fever and cold viruses share some overlapping symptoms, one of the main differences is that, ironically, hay fever ...