The appearance of small bubbles on the foreskin may be the presence of glans penis, genital herpes, after diagnosis, mainly for drug treatment, different conditions, the use of drugs is also different. 1. glans penis: for glans penis, may be related to bacterial as well as fungal infections, there are bacterial infections, can use mupirocin ointment, erythromycin ointment and other drugs. If there is a fungal infection, you can use miconazole ointment, clotrimazole ointment and other medications. 2. Genital herpes: usually associated with herpes simplex virus infection, after diagnosis can be applied to antiviral drugs, such as acyclovir, ganciclovir, etc., in the period of treatment should be prohibited from sexual intercourse, to prevent cross-infection. In the course of treatment, it is necessary to follow the doctor’s instructions, safe and reasonable application of drug treatment, do not self-medication.