Noma
If you have food poisoning, you should go to ER, but if you want to check out some helps, read "Folk Medicine" who advocates drinking 1 teaspoon of applecider vingar in a glass of water at a meal, even in restaurants. This doctor said he carried a small bottle of ACV with him for such reasons. Said it helped him from getting sick when others ate the same foods and got sick. Also, I have used activated charcoal capsules with good results when food hasn't agreed with me, giving me gas, etc. You can research both on the "web," I'm sure.