Molluscum contagiosum is an infectious skin disease caused by molluscum contagiosum virus. The disease can spread in public baths and swimming pools or through sexual contact, and children are generally infected through direct contact and self-inoculation. Zhou Jing, a dermatologist at Shanghai Children's Hospital, said that you should avoid using facial towels when you are sick, and don't use towels, close-fitting clothes and other toiletries with your family. Try not to scratch and avoid self-inoculation. It takes months or even years for this disease to subside on its own, and it is highly contagious. Once it is found, it should be treated as soon as possible. The main treatment is surgical resection. After the operation, the towel and the close-fitting clothes worn by the patient should be scalded, and the wound should be protected from water, disinfected with alcohol and externally applied with antibiotics within one week. If there is a new rash after operation, you need to see a doctor immediately to avoid a new round of autologous vaccination. Generally, it can be recovered after 2-3 treatments. If you have recurrent attacks, you should consider low immunity and use immunomodulatory drugs as appropriate. In order to prevent the occurrence of this disease, we should develop good hygiene habits, and don't wear other people's clothes indiscriminately, especially don't use other people's bath towels and rubbing towels.