The child chin warts for human papilloma virus infection of the skin mucous membrane caused by benign superfluous organisms, can be in the doctor’s guidance local application of drugs, such as salicylic acid ointment, etc., but also can choose physical therapy treatment, such as cryotherapy, microwave treatment, etc.. 1. medication: salicylic acid ointment belongs to the keratolytic agent, the stratum corneum has a rapid loosening effect, can peel off the skin surface of the warts. It has obvious anti-proliferative or promoting the effect of exfoliation of keratin, for keratosis pilaris, can play a good therapeutic effect, so for the removal of warts have a certain auxiliary therapeutic effect. 2. Physical therapy: cryotherapy, which is the application of refrigerant to make the lesion necrosis. Microwave therapy is through the organization of molecular high-speed movement generated by a huge shock friction, resulting in local instantaneous high temperature so that the warts of the tissue necrosis, so that the warts will be removed. The specific treatment will vary depending on the patient’s physical condition and the stage of the disease, so the child’s chin warts need to be under the guidance of the doctor for standardized treatment, and in the process of the treatment, do not scratch the affected area, to keep the chin clean.