Drinking licorice in water as prescribed by the doctor can benefit the qi and tonify the middle, moisten the lungs and stop coughing, and clear away heat and toxins (remove heat and toxins from the body). However, excessive consumption may cause potassium deficiency, elevated blood pressure, edema, etc. Therefore, licorice in water should not be taken for a long time and should be appropriate, the specific should follow the doctor’s instructions to regulate the use of medication, to avoid sodium retention, edema, hypertension and other adverse reactions. Licorice, taste sweet, nature flat. It belongs to heart, lung, spleen and stomach meridians. It can tonify the spleen and benefit the qi, clear away heat and detoxify the toxin, expel phlegm and relieve cough, relieve pain (relieve more urgent pain symptoms), and harmonize various medicines (harmonize the medicinal properties of different Chinese medicines). It is used for weak spleen and stomach, tiredness (fatigue), palpitations (rapid heartbeat, often accompanied by panic), shortness of breath, cough and phlegm, contractile pain in the epigastrium (abdomen) and limbs, carbuncle, swelling and sores, and relieving the toxicity and potency of drugs. Although licorice has the above effects, but the effective dose of infusion is limited, it is difficult to achieve the above effects, it is recommended to take under the guidance of a doctor. It is not suitable to be used with seaweed, Kyoho, red halberd, Glycyrrhiza glabra, coriander.