Liver Abscess. Please advise suitably.

My mother has liver abscess, which was treated by the medicine mainly metrogyl for 20 days. One week given intra venous and about 10 days orally. Treatment was given by MD (medicine) for one week and subsequently we switched to gastroenterologist, who further treated with metrogyl, Rekool and other vitamins for 10 days. After this course, ultrasound was done and it still established liver abscess. That gastroenterologist is advising that everything is okay nothing more to do with this. He has stopped metrogyl and giving few supplements and vitamins alongwith Rekool for gas. We are worried as the latest usg is still showing abscess (report is attached) but He advised that there is no need of draining and no need of further medication and is continously telling that only take care of diet all other things are fine. Please advise suitably.