If there is a break in the lining of the oral mucosa, it is not necessary to take oral medication at this time. You can apply some furacilin paste or use a mouthwash containing iodine locally to promote the healing of the mucosa. Because the oral medication is slower to re-act to the inner wall of the oral mucosa, so the effect is relatively small, as long as the local symptomatic treatment on it, it will heal in a week or so. Because the facial blood flow is very rich, it can promote the active healing of the wound, as long as the patient does not eat too much irritating food during this period to avoid infection of the wound, which will also avoid the pain to be more aggravated. The cause of the breakage of the inner wall of the oral mucosa should be clarified, if the patient accidentally bites, which is the occurrence of the accident. If the inner wall of the oral mucosa is often broken, it is necessary to observe whether there are teeth with too sharp edges.