There are a lot of small bags inside the foreskin can be local medication, oral medication, physical therapy, etc. Common diseases are glans, genital herpes, warts and so on. 1. glans: the causative agent infection of the glans area of the foreskin will cause inflammation and irritation, you can use sensitive antibiotic medication, for Candida infections you can use clotrimazole cream, miconazole cream, for anaerobic infections you can use metronidazole, tinidazole preparations, for aerobic infections you can use erythromycin ointment. For serious symptoms should be combined with oral drug therapy, such as metronidazole, betamethasone, erythromycin and so on. 2. genital herpes: herpes simplex virus infection men will appear genital blisters, can be applied locally acyclovir, spray acyclovir cream, serious at the same time oral acyclovir, valacyclovir, famciclovir. 3. Warts: Human papilloma virus infection can cause genital skin and mucous membrane superfluous, can be applied imiquimod cream, onychomycosis cream, seltexin ointment and so on. Serious can be frozen laser and other treatments. There may be other reasons why there are a lot of small packets inside the foreskin, and patients need to consult a doctor in time for examination and early treatment.