My tongue is red hurts and always has a coating on it. i have take antifungal oral meds also my whole mouth hurts?

Brush tongue.: You may need to switch your meds. Maybe a rinse rather than pill form. See your dentist and be sure to gently brush your tongue.

Other condition: You may have an antifungal med that is not working or you may have one of a number of other conditions. I would suggest going back to your doctor or seeing a specialist in oral medicine... Possibly an oral surgeon..