The three main harmful effects of licorice are inconclusive. Large doses can cause swelling and contribute to the ills of dampness and congestion; it should also not be used in the same way as Glycyrrhiza glabra or Coriandrum sativum to avoid poisoning. Licorice is clinically divided into raw licorice and roasted licorice. Raw licorice has the effect of clearing heat and removing toxins (removing heat, toxins and evil qi from the body). The effect of roasted licorice is to tonify the heart and spleen (using tonic drugs to tonify the heart and spleen), moistening the lungs and relieving cough, which can be used clinically to harmonize all medicines (harmonize the properties of different Chinese medicines), and also to treat a variety of diseases, such as deficiency of spleen qi, coughing and asthma, and epigastric (stomach) pain, etc. Licorice should not be used in large doses to avoid poisoning. Licorice should not be used in large doses. Long-term use of large doses of licorice can easily hinder the expulsion of dampness, resulting in oedema, abdominal distension and other discomforts, and should not be used by people with oedema, dampness and distension. In addition, licorice should not be used in the same way as glycyrrhiza glabra, coriander, morinda citrifolia, and seaweed to avoid toxic reactions such as abdominal pain, nausea, and vomiting. Licorice needs to be used correctly under the guidance of a professional physician.