Flower peeling moss can heal itself, also known as map tongue, is a superficial exfoliative lingual inflammation, mainly in the dorsum of the tongue, tongue belly, tongue edge, etc., manifested as a single or multiple round or oval erythematous spots, sometimes enlarged, fused into the shape of a map, due to the location and morphology of the changeable, also known as wandering lingual inflammation. The reason for the formation of map tongue is not clear, mostly related to anemia, gastrointestinal dysfunction, emotional instability and so on. Since map tongue has a good prognosis and does not cause obvious discomfort, it can usually be cured without treatment. If map tongue is accompanied by grooved tongue or Candida albicans infection, it is necessary to gargle mouthwash or apply antifungal drugs to keep the mouth clean.