Yunnan Baiyao Aerosol is mainly used to activate blood circulation, eliminate blood stasis, reduce swelling and relieve pain, which can be used for muscle aches and pains, blood stasis and swelling, bruises and rheumatism pain. After meniscus injury, the local circulation is impaired, and aseptic inflammation occurs in the joint cavity, which may cause joint swelling, pain, leg extension and other symptoms. Therefore, Yunnan Baiyao Aerosol can activate blood circulation and eliminate blood stasis for meniscus injury, reduce swelling and relieve pain, but the effect of the drug is relatively limited, and the simple application of this drug can not be the fundamental treatment of meniscus injury. The treatment of meniscus injury also includes rotating the joint by manipulation in order to release the interlocking, fixation by plaster or knee immobilizer, surgery and other treatments. It should also be noted that Yunnan Baiyao Aerosol should be contraindicated in pregnant women and those who are allergic to Yunnan Baiyao. It should also not be used by people with damaged skin. A very small number of patients using Yunnan Baiyao aerosol will lead to allergic rashes, appearing all over the body itchy, trunk and limbs and other parts of the urticaria, so the meniscus injury should be standardized treatment under the guidance of specialists, do not use their own medication, so as not to cause adverse consequences.