Is there any perfect remedy for mouth ulcers

Is there any perfect remedy for mouth ulcers Is there any perfect remedy for mouth ulcers How much water and other fluids that you are drinking. If you are drinking 1500 ml water or more than that, restrict water intake to 200 ml 1 hour before each meal. Total 200x3 = 600 ml. Mouth ulcer will disappear in 60% cases by end of day 1 and in 95% case by end of day 3. To permanently get rid of mouth...