I'm still in treatment and have horrible yellow tongue... Even using nystatin(anti fungal Rx) swish four times a day... Feels like I haven't brushed in a week even though I brush like 5x a day... Doc said she doesn't think it's thrush but best to just use it to prevent.

No real advice but see a PCP to make sure it's not thrush, lots of sympathy for the old man from me... This is not the funnest feeling.