Chrysanthemum tea as a drink has some nutritional value, there is no clear information to show that it has the efficacy and effect of treating mouth ulcers. Mouth ulcers are now commonly treated with medications as follows. The treatment of oral ulcers is based on symptomatic treatment, such as the use of lidocaine spray or benzydamine spray to reduce pain, the use of recombinant human epidermal growth factor gel or rehabilitation of new liquid to promote healing of ulcers, for the long lasting or painful oral ulcers can be used to tricholoma suspension plus an equal amount of lidocaine liquid in the ulcers under the mucous membrane of the closed injection. All of the above drugs should be used under the guidance of a doctor, it is recommended to go to the hospital to receive regular targeted treatment.