I have a yellow tongue my doctor tells me it is fine and no problem?

Yellow tongue: Can you be more specific about the color, is it the entire tongue or just the top surface . The top surface can be brushed and scraped by a special tools you can buy from any drug store, the color takes on , is due to the individual diet , smokers, red wine , curry or spicy food , etc if pain is not present and tongue has no ulcers , you are fine.

Brush your tongue: Use a soft brush and/or a tongue scraper to clean your tongue.