Ice Boron San is usually gargled in the mouth for about 4~5 minutes and then spit out. Ice Boron San is effective in reducing swelling, relieving pain, clearing heat and removing toxins, and is mainly used to treat diseases such as mouth and tongue sores, sore throat, and swollen and painful gums. Adverse effects of this drug include digestive symptoms, such as diarrhea, abdominal distension, abdominal pain, dyspepsia and other symptoms, and some patients may have allergic reactions, inducing allergic stomatitis. It is prohibited for those who are allergic to this drug, pregnant women and lactating women, and children should be used with caution. In addition, patients should pay attention to a light diet during the medication, avoid cold, spicy, greasy food, avoid drinking alcohol and so on. It is recommended to use the drug under the guidance of a doctor, not blindly self-medication, in order to avoid adverse effects.