Pain on the surface of the tongue may be due to papillitis of the tongue. Papillitis of the tongue is caused by dryness of the mouth or poor mental state, or may be caused by poor oral hygiene, when the papillae of the tongue may increase in size and produce discomfort such as itching and pain. In this case, you can choose to use aerosol medication to promote the inflammation and help relieve the pain. In addition, pain on the surface of the tongue may also be caused by tongue ulcers, which may be caused by trauma or vitamin deficiency and should be treated promptly to promote rapid healing and avoid recurrence. If it is a vitamin deficiency, you should take vitamin supplements in a timely manner, and have a balanced nutrition and a regulated state of mind. If it is caused by trauma, the teeth should be resharpened or replaced in a timely manner to facilitate oral hygiene and change the state of the oral mucosa.