Hi I can understand your concern.... Noted your friend father having liver cirrhosis.... See once liver damage and cirrhosis occur it is irreversible condition means you can t revert it back.... But with good habits further complication can be prevented or delayed .... Alcohol strickly avoided.... High protein diet taken... Low salt for preventing edema.... Take one tsp crushed papaiya seed with lemon juice... Beet roots , onion , aloe vera juice , Brussels sprout are some good foods... In early morning grined spinach and carrot juice taken. If portal hypertension present beta blocker might needed.... In progressive disease final treatment is liver transplantation... Keeping this in mind consult gastroentetologist.. For physical examination esp...spleen palpation... Avoid alcohol..... Take care. Dr.Parth