[Peppermint tea made a major difference to me. ]
The unfortunate part of peppermint, or any mint tea is that it causes reflux in a lot of people, as it relaxes the sphincter muscle in the esophagus.
And I can’t drink green tea or any kind of tea at all due to caffeine sensitivity. I’m actually sensitive to a lot of herbs and dried leaf products, too. Any blanket statement that all people should do something is false. Not everything works the same way for all people. Some people are immune to ill effects; others are hypersensitive.
That’s probably related to why it’s so good for gas and constipation, relaxing muscles.