Hello Please ask him to take an OTC or prescribed antacid regularly. Once a day. The report mentions a healing mallory-weis tear, assuming he does not have any symptoms now, vomiting/blood in vomitus, it will heal soon. Besides medications, diet should be bland, preferably avoid processed food/sodas/pickles and outside food, small frequent meals are recommended, early and light dinner. The diet as such can contain your regular home cooked staples, but make it less spicy and oily. Include more fruits and vegetables. Smoking and alcohol is a strict No. And kindly follow up with a medical Gastroenterologist.