Mouth ulcers loose for mouth ulcers have a certain efficacy, but the specific therapeutic effect varies from person to person, patients should follow the doctor’s instructions to use the drug. 1. oral ulcer is a kind of Chinese medicine, the main ingredients include ice tablet, Qingdai, alum, together to play the efficacy of heat convergence, clinically used in the treatment of oral ulcers. 2. The efficacy of the drug is generally good, but different patients due to personal constitution, the severity of the disease and other factors, the specific efficacy can not be generalized, the patient after 1 week of medication if the symptoms are not relieved, should consult a doctor to adjust the medication. 3. It should be noted that people who are allergic to any component of this drug are prohibited from using oral ulcer powder, the drug is a topical drug, can not be taken internally. Adverse effects of oral ulcer powder is not clear, patients should seek medical advice if they experience serious discomfort during the medication. Patients should follow the doctor’s instructions to use oral ulcer powder, avoid blindly use their own medicine, so as not to affect the condition.