Itchy red bumps on both sides of the buttocks may be due to eczema, contact dermatitis, ringworm and other diseases, need to take medication for the cause of the disease. 1. Eczema: a lot of itchy red bumps on both sides of the buttocks may be due to eczema, the patient can be under the guidance of a doctor to use topical glucocorticoid drugs, such as tretinoin cream, hydrocortisone cream, halomethasone cream, etc., or the topical use of tacrolimus ointment, pimecrolimus cream and other calcium-modulated neural phosphatase inhibitors. 2. contact dermatitis: buttocks on both sides of a lot of red bumps very itchy may also be due to contact dermatitis, the patient can comply with the doctor’s instructions for external use of glucocorticoid drugs, such as dexamethasone cream, hydrocortisone cream, etc., or oral antihistamines, such as chlortetracycline, cetirizine and so on. 3. ringworm: buttocks on both sides of a lot of red bumps and even peeling very itchy is also considered to be due to ringworm, patients need to comply with the doctor’s instructions for external use of antifungal drugs, such as miconazole, econazole, terbinafine, or oral terbinafine, itraconazole, and so on. There are many reasons for the itchy red bumps on both sides of the buttocks, and it is recommended that the patient take relevant treatment measures after clarifying the cause of the disease.