Years ago I worked with a Native American who shared several natural cures with me. One that my family tried and had great success with is slippery elm tea. Our children are all grown and gone now, but when they were younger they would actually ask for it. We have used it for most any stomach related problem, and still use it today. Usually one or two cups is all this is needed for a bout with what people refer to as stomach flu. Occassionally I will fix a cup for my wife if she complains of diarrhea. It works well, has no unpleasant taste and most important, NO side effects. It can be purchased at most online herb stores in the bulk form, and a little bit goes a long way. We make it in a tea ball.