You must drink a lot of water on the day prior and after the flush..
The Ulcer you are talking about can be cured by taking Three caps- (oo) size- of Wild Oregano oil three times a day; also, 1 cap (00) size of Grape fruit seed extract a day.
When I came here, I was suffering from many different ailment. among them, was over 12 ulcers... I had horrible acid reflux too. While I was doing many curezone protocols at the time, I am relatively sure the cure came from this.
Try these protocols too..
water cure
juicing
bowel cleans
parasite