Cold sores, often linked to HSV-1, are common and usually unrelated to sexual contact, unlike HSV-2, which is an STD.

Now this might be a bit obvious but if you're noticing blood when you brush or finding your gums are sore, it's something to ...

Medically reviewed by Katlein Franca, MD In some ways, the features of a cold sore vs. a pimple on the lip line are very ...