You just noticed a painful red bump on your lip. Is it a cold sore or a pimple ... forehead, neck, back, upper arms or chest, per the Cleveland Clinic. There are some tips that can clue you ...

plus no greasy mess on my lip. ANSWER: The first antiviral drug developed for herpes simplex infections was Zovirax ...

A 5-gram tube of Zovirax cream runs more than $200. A month’s supply of valacyclovir (500 milligrams) tablets costs between ...

Cold sores, or fever blisters, are precisely herpes simplex virus type 1 (HSV-1) that appear as fluid-filled blisters around the lips that can also develop on the chin, cheeks or inside the nostrils.

Threats to your lips come from everywhere: sunburn, windburn, cold and dry air, bacteria, cold sores, you name it. (It's a rough world out there for your kisser.) For all these reasons ...

"Both lip pimples and cold sores can pop up on the border of the lips, and a lip pimple can be mistaken for a cold sore," says Ko. However, cold sores, also known as oral herpes, are caused by the ...