Symptoms of Heart Fire are characterized by fever, thirst, heartburn, mouth and tongue sores, redness and pain. Heart fire inflammation refers to the heart meridian fire and heat hyperactivity, through the meridian up inflammation of the mouth and tongue, common manifestations of mouth and tongue sores, red rotting pain, fever, thirst, bitter mouth, constipation, red face, pulse, etc., accompanied by irritability and restlessness, restlessness, insomnia, and so on. The basic formula for treating heart fire is Diarrhea-Heart Tang combined with Liang Diaphragm San plus or minus; if patients have dry mouth and like to drink cold drinks, tortoise board, Xuan Shen, Zhi Mu and Sha Shen can be added; if patients have vomiting blood or nosebleed, Water Horn, Radix et Rhizoma Sheng Di and Dampy can be added. The adverse effects of the above formulae are not clear. Where there is blood loss due to yang deficiency, or where the spleen does not regulate blood (the spleen is unable to regulate blood), it is contraindicated to use Laxing Xin Tang. Chinese medicines or proprietary Chinese medicines need to be used under the guidance of a Chinese medicine practitioner, and individuals should not use them blindly to avoid adverse effects.