My brother has real bugs living in his skin where and what do i do to help and he is not on drugs and yes he takes a bath

Scabies?: His primary care doctor can treat scabies. After treatment, the scabies lesions will still itch for a few weeks. So, people generally do two treatments and just presume the scabies are all dead. After that, if one is not scratching so hard that he is creating his own new skin lesions, then any spontaneous new lesions would be suspicious for new live scabies mites.