Yunnan Baiyao Spray can be used immediately after a sprain. Yunnan Baiyao Aerosol has the effect of activating blood circulation and dispersing blood stasis, reducing swelling and relieving pain. It can be used for bruises, swelling and pain caused by bruises. When there will be localized swelling and pain after a sprain, Yunnan Baiyao Insurance Liquid can be used first to reduce the local temperature and reduce swelling and pain, prevent further aggravation of swelling and relieve pain. If the severe pain is still not relieved, repeat the administration of the drug at intervals of 1-2 minutes, and the use of the drug should not exceed 3 times a day. Spray Yunnan Baiyao Aerosol Insurance Liquid after 3 minutes interval. It should be noted that the use of Yunnan Baiyao Aerosol Insurance Liquid first vibration shaking, the nozzle from the skin 5 to 10 cm, the spray time should be limited to 3 to 5 seconds to prevent local frostbite. In addition, people who are allergic to Yunnan Baiyao aerosol should not use it, and if a local or generalized rash occurs during use, you need to stop using it, and do not use it if your skin is damaged. Specific use should be under the guidance of a doctor.