Hello, Wait n watch for biopsy report. That's truly  important. Ok.

Sir homoeopathic treatment can permanently cure this problem of your father rapidly EFFECTIVELY and without any side effects

I would ask you to wait for the biopsy report and get a confirmed diagnosis. He may require antacids to help with his stomach ulcers. These steps may also help: - Don't skip meals, he may not feel like eating so you can make it into a liquid diet containing soups and juices and slowly increase the consistency based on how he tolerates it, also in such conditions he should have the reduced amount in frequent intervals(i.e. 3 square meals broken down to 5 or 6 as he can tolerate) and slowly increase as you get better. - Reduce/ Avoid spicy,fried, fatty, junk and oily food - Exercise regularly - Increase daily intake of water to 3 liters - Avoid/Stop smoking and drinking if he has the habit - Reduce stress through methods such as yoga/meditation. - Avoid painkillers as it will increase your gastric problems at this moment.