Qing Stomach San is formulated with Radix Rehmanniae Praeparata, Radix Angelicae Sinensis, Radix Paeoniae Mudanensis, Rhizoma Coptidis and Rhizoma Asiatica. Clearing the Stomach is effective in clearing stomach and cooling blood (eliminating stomach heat, cooling blood heat and preventing bleeding). It is used for treating stomach fire toothache, which is characterized by toothache and headache, heat in the cheeks, teeth preferring cold to heat, or bleeding from dental proclamation, or red, swollen and ulcerated gums, or swollen and painful lips, tongue, cheeks and cheeks, hot and smelly breath, dryness of the mouth, red tongue with yellow fur, and slippery pulse. It is often used in the treatment of stomatitis, periodontitis, etc., which is caused by the attack of stomach fire. It is important to note that those whose toothache belongs to wind-cold and kidney deficiency and fire inflammation should not use Qinggong San. It is recommended that patients standardize the use of medication under the guidance of a doctor, do not blindly use on their own.