Igloo Patch is more effective for some mouth ulcers, the main ingredient of this drug is dexamethasone, which is a glucocorticoid that can inhibit the local inflammatory response, thus promoting accelerated healing of non-infectious mouth ulcers. Mouth ulcers that are non-infectious lesions without localized bacterial or viral infections can be treated with Yik Yak Paste, which is usually able to promote healing of mouth ulcers. If the local bacterial, viral infection, the use of YiKePian effect is not ideal, sometimes due to the local application may reduce the local immunity, but make the mouth ulcer aggravation, so before using to identify the cause of mouth ulcers. Yi Ke Paste because it contains glucocorticoids, so it can not be used for a long time, otherwise it can produce adverse reactions. Of course, the cause of mouth ulcers is complex, in addition to the local use of Yi Ke Paste, but also for the cause of the relevant systemic treatment, such as supplemental vitamin B, zinc sulfate, etc., adding immune-regulating drugs, such as levamisole. In addition, we should pay attention to avoid overwork, tension, stress, pay attention to life, regular routine, conducive to the healing of mouth ulcers, reduce the recurrence, and can not simply use Yi Ke Paste treatment of mouth ulcers.