There is no such thing as the fastest and most effective way to clear the lungs and resolve phlegm (remove lung heat and dissolve phlegm), but you can choose Chinese herbal medicine to regulate the condition after identifying the symptoms under the guidance of a doctor. Lung-clearing and phlegm-eliminating are mostly used to treat coughs and phlegm caused by lung heat and phlegm-heat. Commonly used proprietary Chinese medicines such as Compound Fresh Bamboo Leak Liquid and Clear Lung and Resolve Phlegm Pill are more effective. For the more serious condition, you can choose soup treatment after identification under the guidance of the doctor, which is more effective compared to proprietary Chinese medicines. For example, Mulberry and Apricot Soup and Pill for Clearing Lung and Resolving Phlegm. The adverse reactions of the above prescriptions are not yet clear. In addition to oral medication, you can also choose nebulized inhalation therapy, acupuncture therapy and other methods of comprehensive management according to your condition. Consult the doctor in time. The fastest and best way is to choose a suitable treatment plan under the guidance of your doctor.