Patients who frequently suffer from oral ulcers generally do not easily get them. Patients should not worry too much. Pay attention to oral hygiene in daily life. If the occurrence of oral ulcers is occasional, and not frequently appearing singly, it is recommended that patients can undergo localized treatment for oral ulcers. They can use oral ulcer patches, which are applied to the ulcerated area in the mouth and can help heal the ulcers. Additionally, it is suggested that patients should definitely pay attention to oral hygiene. They can appropriately use oral sprays, and it is important to rinse the mouth promptly after meals. Avoid eating spicy, irritating foods, and overly hot foods. Relax and if oral ulcers repeatedly occur severely, it is recommended that patients seek medical attention promptly.