Painful hard acne, if it is acne can be used externally Vitamin A acid ointment, fusidic acid cream and other drugs, if it is folliculitis, you can use erythromycin ointment, lincomycin lidocaine gel and other drugs. 1. acne: and the body’s androgen secretion, resulting in a large amount of sebum secretion, follicular duct hyperkeratosis, follicular Propionibacterium brevis reproduction, can be used topical retinoic acid ointment, fusidic acid cream and other drugs treatment. 2. Folliculitis: Hair follicles are infected by external pathogenic bacteria causing an inflammatory reaction will cause congestion of the hair follicles, resulting in hard acne pain, redness and other inflammatory manifestations of the skin, can be used externally with erythromycin ointment, lincomycin lidocaine gel and other antibiotic drugs. If you have a hard acne pain, there may be other reasons, it is recommended to go to the hospital in time to check, follow the doctor’s instructions for treatment.