Cold sores are small sore spots that sometimes appear on or near someone's lips and nose when they have a cold. A small blister occurring on the lips and face and caused by herpes simplex. Also called fever blister, herpes labialis. a painful spot on your lip or inside your mouth that is caused by a virus
is a cluster of small blisters on the skin, most frequently around the mouth and lips caused by the herpes simplex virus Cold sores can be activated by sunlight Wearing a lip protectant with sunscreen may prevent a cold sore Collagen: A natural substance within body tissues It can be injected into the skin to plump up particular areas A fibrous protein found in skin, bone, cartilage, tendon, and other connective tissues A fibrous substance, derived from bovine placenta used as a super moisturizer