The leaves and stems are used together in medicine, and are generally considered to be of equal potency. Donglingcao is a heat-clearing and detoxifying (removing heat and toxicity from the body) herb, which is the dried above-ground part of the plant Crushed Rice Fork of the family Labiatae, with a bitter, sweet flavor and slightly cold nature, and is classified as belonging to the Lung, Stomach, and Liver meridians. With the effects of clearing heat and removing toxins, activating blood circulation and relieving pain (relieving pain by removing blood stasis), it is mainly used for the treatment of sore throat, headache, cough and phlegm caused by wind-heat violating the lungs (wind-heat evil qi invading the lungs) or heat-poison congestion, as well as for the treatment of the obstruction in the abdomen (women with lumps in their lower abdomen) due to stasis and toxicity and for the treatment of snake and insect bites and other diseases. Adverse reactions and contraindications of Dong Ling Cao are not clear, it should be noted that the nature of the drug is slightly cold, spleen and stomach cold (spleen and stomach weakness cold), diarrhea patients need to be used with caution, during the use of the drug should be a light diet, avoid spicy, raw and cold, cold, greasy food. Donglingcao need to be under the guidance of a physician to identify the evidence of the preparation of medicine, not to be used on their own.