Dealing with effects of cross contamination in Coping with Celiac Disease Posted March 3 · Report to Admin Hi Brian, She can try some Pepto Bismol. It may help with gut irritation. Also peppermint tea is good for gas. Pepto also has aspirin in it so that can help with pain. Staying off dairy for a few months is a good idea and also oats. Some people with celiac react to oats just like they do to wheat, rye and barley. Eating simple whole foods is best for starting the gluten-free diet. Try and avoid the processed foods.