The more you scratch the more itchy buttocks can be seen in eczema, urticaria or scabies, can be used externally with glycerine lotion, glucocorticosteroids, anti-allergic drugs and do a good job of skin cleansing. 1. Eczema: If the itchy buttocks are caused by eczema, you can use glycerine lotion to stop the itching, and then use fusidic acid ointment to treat it. 2. Hives: Hives is caused by allergy, you can use glycerin lotion to stop itching, and use anti-allergy drugs to treat, such as glucocorticoid ointment. If the symptoms are serious, you need to use oral anti-allergy drugs, such as loratadine. 3. Scabies: Scabies can appear itchy skin, hard nodules, etc., you need to do a good job of skin cleaning, use sulfur soap to wash the affected skin, and then use hydrocortisone ointment can be coated. The specific dosage of the drug should follow the doctor’s instructions, not blindly use the drug.