Seventeen-year-old with itchy scrotum and itchy buttock crease—what should be applied?

For a 17-year-old male experiencing itching in the scrotal area and the gluteal cleft, several possible causes should be considered, including poor local hygiene, sweat irritation, allergic conditions, bacterial infections, and fungal infections. Regarding treatment, the following topical ointments may be considered: 1. Sulfur Ointment: Suitable for itching caused by fungal infections; it has parasiticidal effects and inhibits bacterial growth. 2. Calamine Lotion: Appropriate for acute pruritic skin conditions; helps relieve itching. 3. Zinc Oxide Ointment: Effective for itching due to eczema; provides skin protection, astringent action, and relief from itching. Please note that all the above ointments should be used only under a doctor's guidance. Follow medical advice carefully during use, and avoid long-term or extensive application.