Liquid medicines for cough include Compound Licorice Oral Solution, Compound Fresh Bamboo Leech Liquid, Lung Force Cough Compound, Scutellaria Baicalensis Cough Syrup, etc. 1. Compound Licorice Oral Solution: It is used for cough caused by upper respiratory tract infection, bronchitis and cold. Individual patients experienced adverse reactions of dry mouth, nausea, skin itching, palpitation and insomnia. 2. Compound Fresh Bamboo Leech Liquid: It has the efficacy of clearing away heat, resolving phlegm and relieving cough. It is used for cough with phlegm-heat and yellow sticky phlegm. This product may cause adverse reactions such as diarrhea and nausea. 3. Lung Li Cough Compound: It has the efficacy of clearing away heat and removing toxins, suppressing cough and expectorant. It is used for cough with yellow phlegm caused by phlegm-heat. The adverse reactions of this product are not clear. 4. Scutellaria baicalensis Cough Syrup: It has the efficacy of dispersing cold and promoting lung, clearing away heat and resolving phlegm, relieving cough and asthma, and is mainly used to treat cough with surface cold and internal heat. Individual patients may have the adverse reaction of dry mouth and constipation. For the above drug allergy is prohibited, must pay attention to drug-related side effects, the use of the above drugs should be used under the guidance of a physician, do not blindly use drugs. If cough occurs, should consult a doctor in time, under the guidance of professional physicians and pharmacists for treatment.