I think hyaluronic acid might fix some of that damage::::
jyt posted this before:
According to the study below, Blastocystis.hominis as well as other protozoa use the enzyme hyaluronidase to digest the mucosal barrier as well as the hyaluronic acid:
So we need also to look for an inhibitor for hyaluronidase and also take hyaluronic acid as a supplement to fix the damage.
An interesting candidate as an natural inhibitor of Hyaluronidase is Chlorogenic acid (according to some ducking studies).