Fungal infections of the tongue are mainly Candida infections, the main symptom of which is the formation of a white pseudomembrane in the mouth, which can be wiped away to reveal a bright red wound. Fungal infections, which do not occur in normal people, mainly occur in weak resistance, such as infants and children or the elderly, but also in patients with AIDS. The main treatment is to use a weak alkaline solution to rinse the mouth and oral antifungal drugs such as fluconazole, itraconazole, miconazole cheek tablets, etc. can play a very good fungal effect. The most fundamental treatment is to improve their own resistance, for infants and children must strengthen nutritional support, avoid picky eating.