Herpes simplex virus (HSV) can cause cold sores on the lips, around the mouth, and, rarely, on the genitals. In children, HSV infections usually occur around the lips and mouth. Cold sores usually appear as painful, fluid-filled blisters and can be spread by contact.
Treatment is with antiviral creams or medications. Topical anesthetics can also be used to reduce pain around the mouth. Cold sores usually heal on their own, but treatment can speed up the healing process and relieve symptoms. It is important for children to maintain hygiene and not touch their cold sores. It is also important to encourage sharing of items to prevent the spread of the virus.
