I've had orange tongue for
about 4 months since I had an operation to have my wisdom tooth
pulled. I was anesthetized and given a 5-day course of erythromycin subsequently. I'm fairly positive it has something to do with the antibiotics I was administered. I brush off just about all of the orange on my tongue each night, and it's fine the morning after. But by the end of the day, it's completely orange again.