Mint is known for it’s laxative properties.This sitesays Peppermint tea will help. Peppermint is the primary ingredient in several IBS treatments. Doesn’t seem like something harmful so just try it.
Mints are known for settling disturbed digestion, including mild stomach upset; I’ve drunk mint tea for that reason, on the grounds that it couldn’t hurt (I drink it sometimes for the flavor anyway), and had either placebo effect, success, or the disturbance was about to go away anyway.
I do a lot of various teas for different reasons; straight mint green tea is my go-to for upset stomach. If I am looking to loosen things up I still use mint but in a black brick tea.