Licorice tablets are effective in relieving cough. Licorice tablets are a purely herbal medicine whose most significant function is to stop coughing and dissolve phlegm, mainly because licorice can reduce the inflammatory stimulation of the mucous membrane, which is very effective in stopping coughing and dissolving phlegm. The main principle is that licorice can reduce inflammation and mucous membrane irritation, which is very effective in relieving cough and phlegm. For common mild cough, drinking more water can help to absorb and release phlegm from the patient’s throat, thus achieving a supportive cough. Licorice tablets are not recommended for infants and young children because they are dependent and can cause runny nose or drowsiness if the medication is stopped, which is very harmful to human organs. Patients with cough must pay attention to the humidity in the room and avoid staying in too high or too low temperatures for a long time, which can indirectly irritate the throat and cause a more intense cough.