What should I do if I have sores on my mouth and tongue?

Sore mouth and tongue can be caused by heart fire inflammation, stomach fire inflammation, kidney yin deficiency, etc. It can be treated with Chinese medicines such as Guanchi San, Qingtong San and Zuoqi Wan.
The herbal medicine can be used to treat the symptoms such as heart and chest irritation and heat (irritability and sultriness), thirst, facial redness, and mouth and tongue sores caused by the inflammation of heart meridian fire.
Clearing the Stomach is composed of Radix Rehmanniae Praeparata, Radix Angelicae Sinensis, Radix Paeoniae Mudanensis, Rhizoma Coptidis, Rhizoma Pinelliae, Rhizoma Asiatica, etc. It has the efficacy of clearing the stomach and cooling the blood, and it can treat the toothache caused by inflammation of the stomach fire, redness and swelling of the gums, and sores of mouth and tongue.
Zuo Gui Wan is composed of Radix Rehmanniae Praeparata, Rhizoma Dioscoreae, Fructus Lycii, Cornu Cervi Pantotrichum, Radix Achyranthis Bidentatae, Semen Cuscutae, and other traditional Chinese medicines. It has the efficacy of nourishing yin and tonifying the kidney, and it can treat swollen and painful gums, dry mouth and tongue due to kidney yin deficiency and inflammation caused by deficiency fire.
If you have any related symptoms, it is recommended to consult a doctor in time, standardize the treatment, and follow the doctor’s instructions to use medication, not self-medication.