To clear heart fire children can take Gui Chi San, this formula has the effect of clearing the heart and nourishing yin, inducing diuresis and clearing lymph, and can be used to treat the evidence of heart fire blazing. The main manifestations of heart fire blazing syndrome are heartburn, insomnia, mouth and tongue sores, burning pain in urine, red tongue tip, yellow moss, and number of pulse. The treatment should be to clear the heart and cathartic fire. It can be treated by taking Guiding Chi San. It is composed of Radix Rehmanniae Praeparata, Radix et Rhizoma Glycyrrhizae, Radix et Rhizoma Glycyrrhizae, Radix et Rhizoma Glycyrrhizae, Radix et Rhizoma Bambooe, which is effective in clearing the heart and nourishing the yin, and inducing diuresis. In this formula, Radix Rehmanniae Praeparata has the effect of clearing heat and cooling the blood (relieving blood heat by clearing heat), Mutong has the effect of clearing heat and inducing diuresis and drenching (improving the problem of incomplete urination and small amount of urine), Bamboo Leaf has the effect of clearing heat and inducing urination, and Licorice is able to harmonize all the medicines (harmonizing the properties of different Chinese medicines). The combination of these herbs can clear the heart, nourish the yin, and promote diuresis and lymphatic flow. It can be used in the treatment of heart fire. The adverse effects of Guiding Chi San have not been clarified, and it is contraindicated for those who are allergic to the ingredients of this formula, and should be used under the guidance of a physician.