Dear Mayo Clinic: My husband frequently gets cold sores. Most of the time, it seems they are due to stress. We’ve been together for two years. I’ve never had cold sores, and I’d like to avoid ever ...

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 ...

Cold sores and pimples are two common skin conditions that primarily affect the face. Cold sores (herpes labialis) are caused by the herpes simplex virus (HSV-1) and affect up to 80% of adults in the ...