Cracks on the surface of the tongue are medically called fissured tongue and there is no good way to remove them. It can be treated or relieved by keeping the mouth clean, good work and rest habits, and medication. 1. Keeping the mouth clean: After you find cracks on your tongue, you should pay attention to keeping your mouth clean and hygienic, which is very important, rinse your mouth in time after eating every day, and brush your teeth in the morning and evening, so as to minimize the breeding and propagation of food debris and bacteria in the mouth. 2. Good work and rest habits: Many people have cracks on their tongues, which are often triggered by overworked daily life and insufficient rest. Therefore, you should also pay attention to develop good habits, usually go to bed early and get up early, ensure enough sleep every day, and pay attention to appropriate exercise, maintain a good mood. 3. Drugs: cracks on the tongue, may be secondary to infection caused by, if the bacterial infection can be oral penicillin, if the fungal infection can be oral fluconazole, play the efficacy of anti-infection. Patients with cracks in the tongue, need to use drugs for treatment, must go to the hospital, according to the doctor’s guidance for medication.