Athletes and exercise enthusiasts after ankle and lower extremity sprains not only want the treatment to be effective, but also expect to be able to return to normal sports and life as soon as possible. In recent years, with the in-depth study of sports medicine, the medical profession in the previous classic treatment principle – RICE principle, based on a more scientific principle. This is – POLICE principle 1, Protect, do a good job of protection, to prevent further trauma to the injury. 2, Optimal Loading, appropriate weight bearing, so that the muscles can not be injured and “rest”. 3, Ice, ice packs, prohibit the use of drugs and hot packs. 4. Compression, applying pressure to the affected area. 5, Elevation, more time to elevate the affected limb. The upgraded version of the POLICE principle emphasizes early activity, although some studies have concluded that there is no significant difference between the two treatment effects after 6-8 weeks of sprains, but the effect of patients treated with the POLICE principle in the first 4 weeks after the injury is significantly better than that of the RICE principle, which allows the injured person to return to work as soon as possible. Ankle sprains should be treated strictly according to the above principles, and it is recommended to go to a professional medical institution as soon as possible to receive the most reasonable diagnosis and treatment. It is especially reminded that it is forbidden to use incorrect treatments such as external application of drugs (safflower oil, etc.), acupuncture and manipulative massage, which are not supported by clear scientific evidence and may even aggravate the condition due to improper treatment.