Below are the permanent solution to get rid of acidity.
Eat small, regular meals rather than occasional big meals. Regular meal is very important.
After eating, stay upright; take a walk.
If you are overweight, try to lose weight.
Sleep with your head raised, which help to prevent acid reflux.
Avoid hot spicy food, pickles, fermented food, chocolate, and coffee.
Avoid alcoholic or very hot drinks.
Minimize or cut out citrus fruit and sour fruit.
Don’t wear tight-fitting clothes or belts.
If you smoke, stop smoking.
Never go to bed or lie down immediately after a meal.