Ulcers of the palate can be relieved by local cauterization and timely removal of the causative factors. A common cause of maxillary ulcers is a white lesion in the maxillary area due to a decrease in body resistance. The initial manifestation of the disease is redness and swelling of the mucous membrane, which slowly appears as a pinpoint depression, with significant local pain in the affected area. The ulcers tend to recur or recur in the same location. The most fundamental solution is to improve the body’s resistance, either through physical exercise, or oral or intramuscular injections of transfer factor. It may also be caused by a lack of vitamins or trace elements, and can be properly supplemented with vitamin C. Iron deficiency can also lead to increased mucosal fragility, which can easily induce ulcers. Pay attention to iron supplementation, you can take oral iron dextran oral solution and other drugs. Ulcers on the palate can be caused by local irritants, remnants of crowns and roots of teeth, or sharp cusps due to uneven wear of teeth caused by chewing hard objects, as well as poor restorations, which can easily induce traumatic mouth ulcers. In this case, it is necessary to remove the local irritants, extract the residual crowns that have no retention value, etc., and recreate the restorations to completely remove the irritants. Maxillary ulcers can also be pain relieved by cautery under local surface anesthesia, and the affected area can be coated with iodoglycerin to promote healing of the ulcer. Therefore, maxillary ulcers can be pain relieved by cautery under surface anesthesia, while improving immunity and removing irritants such as crown remnants.