Drink mint essence (available as Pudin hara or Amritdhara in India. These are mint or peppermint essence.), 3-4 drops in water, every one hour. Also drink jaljeera (a mixture of cumin, salt, asafetida, and other herbs) 2-3 times. Let the poison get out of your body through vomiting or motions. First you will throw poisonous foods and then water (Drink lot of water with sugar/salt). You should be alright in less than 24 hours. Start this treatment as soon as you start getting sour burps. You may drink mint essence (3-4 drops in water) after you eat in a restaurant or party or you have overeaten.
The authors of this web site have used this treatment for this type of condition many times with 100% success.
Mix a tablespoon of lemon juice or cider vinegar in a cup of hot water before a meal to prevent acid indigestion.
Add three drops of garlic oil to an half a cup of soya oil and rub onto the stomach after food.
Drink a herbal tea of mint, raspberry, camomile and blackberry.
Drink one cup of ginger tea after meals to promote a good digestion and for heartburn, nausea, etc.
Mix equal parts of baking soda and water in a glass.
Take 1 tsp each of mint juice, lemon juice, and honey.
Peppermint is a good for indigestion. Those who are prone to heartburn may try peppermint tea. It will help indigestion with out causing heartburn.
Mix 2 pinches of rock salt and 1/2 tsp carom seeds (ajwain). Chew it and wash it down with water for upset stomach or indigestion,
Mix 5-6 chopped basil (tulsi) leaves, 1/4 tsp sea salt, some black pepper in 3 Tbsp of curd, and eat it. repeat this 4 times a day for one week for complete reconditioning of stomach.
Here are some effective remedies for acidity or indigesiton
i. Chew 8-10 pudina leaves (fresh mint leaves) early in the morning on an empty stomach for one month. Having raw onions along with your meals will also keep acidity at bay.
ii. Drink a glass of lemon juice before each meal, it will help relieve acidity.
iii. Avoid too much tea, coffee, fried and fermented food as they stimulate acid production.
iv. Take a glass of water, add a pinch of baking soda and drink it at one go. It gives immediate relief.
v. Take a glass of warm water, add a pinch of hing (asafoetida) and have it every morning.
vi. Drink coconut water 3-4 times in a day.
vii. Eat a serving of cucumber or watermelon 4-5 times in a day.
viii. Chew 7-8 basil (tulsi leaves) leaves to get relief from acidity and gas.
ix. A glass of kokum sherbet with little jeera (cumin seeds) added to it helps relieve acidity.