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 ...

Cold sores, also known as oral herpes, can pass through sexual contact. However, they are not technically a sexually transmitted infection (STI), as people most often acquire cold sores through ...

Add Yahoo as a preferred source to see more of our stories on Google. When you don’t feel well, you want a quick fix. You might be familiar with treatments for allergies or the common cold. But what ...

Cold sores are contagious and spread through contact, such as kissing and sharing drinks. You can get pimples from bacteria ...

This fall and winter, children will be susceptible to COVID-19, the flu, RSV and colds. Many of the symptoms for all four viruses overlap, which makes it difficult to determine which illness your ...

So, you woke up with a sore throat — is it COVID-19, allergies, a cold or something else entirely? With winter weather on its way, it's virtually impossible not to catch some sort of illness. But when ...

For those who get sick during the fall and winter, the diagnosis could be a toss-up. With the threat of the common cold, flu, COVID-19 and RSV in the mix, it can be tricky to determine the culprit.

A young woman has gone viral with a cautionary tale about the spread of cold sores, sharing her painful experience with a virus that spread to her eyes. Amelia (@amelia.kate02), a 19-year-old student ...