It is not useful to eat eggs for mouth ulcers, and the heavy metals of pickled food are over the limit, so it is recommended that patients eat as little as possible, and after eating heavy metal food, it will have a greater detrimental effect on the oral environment, especially for patients who are prone to repeated ulcers in the mouth, if they take food with excessive heavy metals, it may stimulate the mouth ulcers, and bad lesions may occur. Mouth ulcers can be gargled with a mouthwash containing iodine, which can promote the healing of the mucous membrane and reduce the occurrence of ulcers. You can also go to the Chinese medicine department for traditional Chinese medicine to prevent recurrence of mouth ulcers. Furacilin paste can be applied locally to the surface of the ulcer. Furacilin paste also has certain local anesthetic ingredients, which can reduce the pain of the mouth ulcer, so that the mouth ulcer can relieve pain and heal as soon as possible.