Hi! Good morning. I am Dr Shareef answering your query. If I were his doctor, I would prescribe him with a proton pump inhibitor along with a probiotic drug for his acidity problem. For the pain during defeacation, I would advise him for regular sitz baths, an anti hemorrhoial cream containing lignocaine and diltiazem. On the finding of the colonoscopy, I would refer him to a gastro enterological surgeon for opinion and needful. I hope this information would help you in discussing with your family physician/treating doctor in further management of your father s problem. Please do not hesitate to ask in case of any further doubts. Thanks for choosing health care magic to clear doubts on your health problems. I wish you an early recovery. Dr Shareef.