What do you do in this case?

it sounds as though you need to leave home and make your own life away from alcohol and all its problems. alcoholism is an illness,not a lifestyle choice, but that doesn't make it any easier for those who are looking on. the health issues include malnutrition, vitamin deficiency, and mental issues. the person may end up with yellow eyes, yellow skin,a pot belly, and stick thin arms and legs.the yellowness is due to liver damage, and although the liver can regenerate itself, there has to be limits, especially if someone keeps on drinking. eventually they will p blood in their faeces and sick up blood from varicose veins in their oesophaguss, this might happen quite early on. in the end their liver gives up and can't process food at all.