There are many causes of anal wet odor, such as hemorrhoids, jock itch, perianal eczema, etc., in the choice of medication should be treated differently, often available Ma Yinglong musk hemorrhoid ointment, compound ketoconazole ointment, tramadol cream and other drugs. 1. Ma Yinglong Musk Hemorrhoid Ointment: has the effect of clearing heat and drying dampness (removing heat and drying dampness), promoting blood circulation and swelling, removing decay and regenerating muscle (promoting the shedding of decayed flesh and the growth of new flesh), and it is suitable for hemorrhoids caused by dampness, heat and stasis, anal fissure, bleeding in stools, or pain, and a feeling of falling down; it is also used for perianal eczema. Adverse reactions are not clear, but pregnant women and athletes should be used with caution, avoid smoking and alcohol and spicy, greasy, stimulating food during the use of drugs. 2. Compound ketoconazole ointment: suitable for ringworm, tinea pedis, tinea cruris. Common erythema, burning, itching, tingling or other irritation symptoms, long-term use of the drug may cause hirsutism, acne, full moon face, osteoporosis and other symptoms. Viral infections such as herpes, chickenpox, etc., as well as pediatric, pregnant and lactating women are prohibited, allergic individuals should be cautious. 3. Trimethoprim cream: can be used to treat eczema, contact dermatitis, seborrheic dermatitis, neurodermatitis, ringworm, jock itch and ringworm and other skin diseases. Occasionally see skin burning sensation, itching, pins and needles sensation and other allergic reactions, long-term use can make the local skin atrophy, hyperpigmentation, hirsutism, etc., high blood pressure, heart disease, osteoporosis, liver insufficiency should be used with caution. The use of medication should be guided by a doctor after clarifying the cause of the disease, so as to avoid the risk of using medication on their own. If any discomfort occurs after using the drug, you should consult a doctor promptly.