Hi Able, As a kid I got this terrible bitter tea to drink when I was sick. I just happen to think about it and wonder if you allow this herb for us. Trying to find a good alocholfree bitter here in Sweden is difficult but that herb is so terrible bitter that I wonder if it would do the job you where talking about. That off the bitter activation in the mouth. Then its written to that this herb is, I quote:
Extracts of the plant have shown to exhibit strong antimicrobial activity, especially against Gram-positive pathogenic bacteria.
Artemisia absinthium is the scientific name of “wormwood” which you may have seen in your readings. The herb contains a high content of bitter ingredients which definitely makes for a better digestion process. I see no problem with using this herb for your purpose.