If the mossless tongue is caused by the lack of trace elements, you can supplement vitamin B₂, vitamin C, folic acid. However, if it is caused by fungal infection or bacterial infection, reasonable medication and good daily care are needed, and simple vitamin supplementation is not effective. 1. Trace element deficiency: no tongue coating on the tongue, usually associated with the lack of vitamin B₂, vitamin C, folic acid, etc., through the trace element screening, found to be lacking in a certain trace element should be supplemented in a timely manner. 2. Fungal infections: this type of tongue without moss simple supplementation of vitamins is not effective, you need to follow the doctor’s prescription oral miconazole, fluconazole antifungal treatment. 3. Bacterial infection: in the case of vitamin supplementation, but also need to follow the doctor’s instructions to use antibiotics to control inflammation, such as cefixime, ampicillin, and so on. Usually also pay attention to oral hygiene, insist on rinsing the mouth after meals. Tongue without moss may also be a normal manifestation, generally no special treatment, regular observation can be; if you are worried about pathological factors, it is recommended to consult a doctor in a timely manner.