Small bumps on sedentary buttocks are considered as follows: First, folliculitis, the Chinese medical counterpart of the disease called sitz sores, is mainly caused by bacterial infection. In clinical treatment, you can use topical clindamycin phosphate gel or erythromycin ointment, and take oral roxithromycin capsules or cefaclor granules for antibacterial and anti-inflammatory treatment. If the small bumps are accompanied by redness, swelling, pain and other manifestations, it is necessary to apply local cold and wet skin health lotion or compound cypress liquid application for detoxification and fire-clearing treatment; secondly, eczema, which is caused by excessive sweating on the buttocks, causing local dampness and stuffiness and leading to eczema, can choose oral Orlistatine Hydrochloride tablets and external application of Denide ointment.