The ointment applied for skin infections should be decided according to the cause of the disease. Bacterial infections can be treated with topical erythromycin ointment and mupirocin ointment; fungal infections can be treated with clotrimazole ointment and terbinafine cream; and viral infections can be treated with topical acyclovir ointment and penciclovir ointment, and so on. 1. Bacterial infections: Bacterial skin infections may cause soft tissue skin infections, skin folliculitis, etc., which can cause redness, swelling, pain and other inflammatory manifestations of the skin, and can be treated with topical antibiotic medications such as erythromycin ointment, mupirocin ointment, and fusidic acid cream. 2. Fungal infection: Fungal infection of the skin may cause ringworm, jock itch, lichen planus, malassezia folliculitis and other diseases. You can use topical clotrimazole ointment, terbinafine cream, bifonazole ointment and other antifungal drug treatment. 3. Viral infections: for example, herpes simplex virus infection caused by skin herpes simplex, or genital herpes; varicella zoster virus infection caused by chickenpox, herpes zoster and other diseases can be applied acyclovir ointment, penciclovir ointment and other antiviral drugs. Skin infections require prompt medical attention, and all medications should be used under the guidance of a medical professional and not abused on their own.