Will look up abdominal massage and working with a TENs unit
One thing I have seen no one write about is the value of Fasting to avoid Gastrocolic Reflex, an autonomic response that starts when solid food is ingested and often leads to diarrhea with someone like me with LARS.
Once you eat solid food, you can expect a bowel response within about two hours. This allows you to plan timing of food ingestion to a place where you will have some control, like a hotel room. Taking food value from liquid, like apple juice does not create the reflex response