Drinking tea cannot cure mouth ulcers. Mouth ulcers are painful ulcerated spots that grow on the mucous membranes of the palate, inner lips, tongue and cheeks of the mouth, etc. The exact cause of this disease is still unclear or related to a variety of factors such as genetics, decreased immunity, mental abnormalities, nutritional deficiencies, trauma, and so on. Tea is only a beverage, and does not have any medicinal value, can not treat mouth ulcers, so drink any tea can not make the condition faster. The treatment of mouth ulcers needs to be combined with the severity of the disease, individual conditions to develop a detailed program, such as mild cases are generally based on topical medication, and appropriate adjustment of lifestyle habits to improve. Pediatric mouth ulcers, on the basis of medication, but also need to eliminate the causative factors, such as supplemental vitamins, change the habit of lip biting. Pregnant women try not to use drugs, eat more vegetables and fruits. Mouth ulcers are not life-threatening, but they should not be treated indiscriminately, so as not to repeat the condition many times, patients need to be treated under the guidance of a professional doctor.