In Chinese medicine, rosin is warm in nature, sweet and bitter in taste, and belongs to the liver and spleen meridians, which itself has the functions of dispelling wind and drying dampness, killing insects, relieving itching and detoxifying. Pine incense can be taken internally and used externally. Internally, it is mainly used to treat rheumatic diseases. If the wind-dampness is on the surface of the muscles and joints, it can manifest as redness, swelling and pain in the joints, or as numbness in the muscles of the joints. If rheumatism is in the stomach and intestines, it can manifest as loss of appetite, diarrhea, sticky stools, and often the tongue of such patients is white and thick, and the tongue texture is light. In addition to the internal use of rosin, it can also be used externally, generally speaking, rosin can be ground into powder for external use, can treat all kinds of bruises, can treat bruises caused by wounds that do not heal for a long time, can also treat fistulas, sinus tracts that do not heal for a long time. In addition, rosin can also be used externally to stop itching, treat itchy skin, and also treat baldness, simply put, hair loss. If we say long-term hair loss, we can use rosin crushed into powder and wine, or and vinegar for external use, can play a certain role in hair growth, this is the efficacy and role of rosin.