I know of 2 Facebook Pages on these two topics that may be helpful to some people. I post it here to try to help anyone affected find these pages.
Canker Sores
https://www.facebook.com/CankerCure
Eye Lash Mites
https://www.facebook.com/profile.php?id=61567083653545
I can’t promise they are professional or well researched. Just opinions to consider if you are looking for info.