Boys with erythema on the genital organs should be further examined to clarify the cause of the disease, follow the doctor’s instructions for targeted medication, such as the foreskin glans, genital herpes, etc., do not blindly use drugs. 1. circumcision: usually manifested in the glans itching, burning pain, erythema, most of the foreskin scales increase, etc., may be due to infectious or non-infectious causes, if non-infectious factors caused by the use of glucocorticosteroid drugs, such as hydrocortisone treatment; if the infectious factors caused by, such as Candida glans, can be used externally with anti-fungal drugs, such as clotrimazole and so on for treatment. 2. Genital herpes: caused by infection of herpes simplex virus, it is recommended to seek medical advice in time, under the guidance of the doctor for antiviral treatment, such as oral acyclovir, vasiclovir, etc., local topical acyclovir gel and other drugs. Specifically need to go to the hospital, clear cause of the disease and follow the doctor’s prescription medication.