For about a year I've been waking up with awful bad breath, I tried everything, toothbrush changes, paste changes, flossing more, brushing more, brushing less, tongue brushes, scrapers, everything.

Then I got covid 19 and was hit with the worst throat of my life, it was like swallowing knives, I was put on pain meds and penicillin.

I now have a perfectly pink tongue and no bad breath, any idea what caused this and I'm hoping it doesnt come back!