I also suffer from having Geographic
Tongue and I discovered that when I take B12 supplements, the
lesions on my
tongue disappear. As soon as I stopped taking the B12 tablets, the lesions came back. I also just discovered that I have a B12 deficiency, so perhaps that is the main reason why I have this issue. I have also noticed that when my tongue gets bad, I am about to have my period or I am suffering from stress. I think it is a combination of a lack of B12, hormones and stress.