There is no such thing as the fastest way to recover from a knee injury. It is necessary to choose the appropriate medication, physical factor therapy or surgical treatment according to the specific conditions of the injury, such as soft tissue injury, bone injury, meniscus injury, ligament injury and so on. 1. Soft tissue injury: if only soft tissue injury, no local open injury such as broken bleeding, cold compress can be applied within 72 hours after the fall. If there is localized swelling and pain, oral ibuprofen and triptan tablets can be taken to relieve the symptoms. If the local area is broken and bleeding, it should be thoroughly sterilized, and in serious cases, it is necessary to go to the hospital for debridement and suturing. 2. Skeletal injury: if fracture occurs after knee injury, external fixation or open surgery for internal fixation should be taken according to the specific situation of fracture. 3. Meniscus injury, ligament injury: If serious meniscus tear, ligament injury, etc. occurs, knee arthroscopy may be required for repair. If the degree of injury is mild, early braking, combined with ultra-short wave, magnetic heat therapy and other physical factors to achieve anti-inflammatory and analgesic, as well as improve blood circulation, to promote the healing of the injury. After a knee injury, the specific treatment needs to be carried out under the guidance of a professional physician, do not do too much weight-bearing exercise before the symptoms are not relieved, otherwise it is easy to lead to aggravation of the symptoms, do not blindly use drugs.