17 May If your tongue has taken on a white tinge, it usually isn't a cause for concern. Find out what causes white tongue and what to do about it. Practicing dental hygiene and drinking more water to flush out bacteria can be easy fixes for white tongue. Further treatment of this symptom will depend on your. What is white tongue and how do you treat it? Learn more about the causes and treatments of white tongue from OraCoat, maker of XyliMelts for dry mouth relief. 7 Dec A white tongue can be alarming to see in the mirror, but in most cases, it's harmless. Find out what's causing your white tongue..