Here are some tips on how to clean your stomach:
1. Stay hydrated by drinking plenty of water.
2. Eat more vegetables, fruits and whole grain products.
3. Don’t lie down for 2 hours after you eat.
4. Eat on schedule.
5. Regular Yoga/Exercise.
6. Avoid fast food.
7. Eat slowly.
8. Quit Bad habits .
If you want to clean your stomach instantly, try coconut oil or castor oil. If you want to clean your stomach in one day, try warm salt water .
I hope that helps!