My husband is a victim of agent orange so has several health issues. He has an appt. with his internist in Feb. but I'm concerned with his diarrhea. It has become more of a problem making it very difficult for him to do a lot of his normal activities. He is dealing with it every day, sometimes half of the day. His stomach hurts most of the time. I'm wondering if a probiotic would help. Also wondering about a medicine we see advertised (Xifaxan) Not to happy about all the side affects it lists.