###Human: Why am I having painful bump with folliculitis below nipple? ###Assistant: Hi. The description you have mentioned is quite classical for anetoderma. This condition arises whenever the skin's elastic and collagen fibers are damaged because of an infective or inflammatory condition. Due to the painful folliculitis, a few of these fibers in the affected area could have been damaged resulting in such condition. This can occur as a consequence of any skin disorder, it is totally benign, and if not causing any trouble best to leave it alone. However, in case you want to try something for it, you could use Tretinoin 0.025 % cream over the affected area for two hours daily.