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.
The sores usually last 7 to 10 days and are contagious until they crust over completely. Ninety percent of all people get at least one cold sore in their life. This first occurrence is often the worst. Some children who are affected may become seriously ill.