If you want to recover quickly from a knee injury, you need to first clarify the condition of the injury, then treat the symptoms, and actively cooperate to achieve the purpose of rapid recovery. Thigh by the knee topped generally have muscle strain or slight bone contusion, or even tendon rupture situation, should be immediately cold compresses, at the same time as soon as possible to seek medical attention, clear injury, do further treatment. Muscle injury should be cold compresses at the initial stage, to avoid swelling aggravation, 72 hours after the adoption of hot compresses, accelerate blood circulation in the injured area, stimulate the absorption of edema, pain can be appropriate with ibuprofen and other anti-inflammatory pain relievers to ease the pain when serious. Minor bone contusion generally does not require special treatment to gradually recover. Serious injuries such as tendon rupture require surgery as soon as possible. In either case, you should actively cooperate with the treatment, so as not to delay the condition.