Bio Andrew âAndyâ Lambros is a web and graphic designer, developer, marketing expert and business consultant. He is the Co-founder and President of the Dream Builders Company, located just outside of Los Angeles, in Southern California.
I have a 3 year old with a sore in his mouth. It is between his upper lip and his gums at the very top. It looks like a white circle and it has a red streak coming down to his teeth.
Cold sores are inflamed blisters in or near the mouth and lips. A herpes virus causes cold sores. Herpes simplex virus type 1 (HSV-1) causes about 80% of cold sores while herpes simplex virus type 2 (HSV-2) causes about 20%. Cold sores are often confused with canker sores. Canker sores are not caused by herpes viruses, are not contagious, and occur mainly inside the mouth, not on the surface of the lips.