My mum's life has been turned upside down. She have visited around 25 doctors and none were able to diagnose her. She also did many tests and colonoscopies, and nothing appeared to be wrong. One of the doctors even stopped her from eating wheat; thinking it was celiac disesase, but the symptoms remained. She has diarrhea, stomach aches, and gas. She goes to the toilet more than 12 times a day. The last doctor she visited diagnosed her with irritable bowel syndrome-diarrhea, but does not know what to do. Can you please tell me what medication she can take that will cure her from IBS-diarrhea and a treatment plan that will help her get better? Thank you.