If bumps grow next to the buttocks, consider the following conditions: 1. scabies nodules, the disease is caused by scabies infection and local immune disorders, resulting in nodules, in the treatment can be applied to the application of mometasone furoate ointment or fluticasone propionate ointment, usually several months before the bumps can completely subside. 2. consider folliculitis, is due to Staphylococcus aureus, Staphylococcus epidermidis and other bacterial infections, in The treatment can be oral minocycline hydrochloride capsules or doxycycline hydrochloride tablets, topical clindamycin phosphate gel or ofloxacin gel application, avoid drinking alcohol during treatment, avoid eating spicy, stimulating food.