Knee bruise fast elimination methods are physical therapy, topical drug therapy, oral medication, and so on. 1. Physical therapy: within 24 hours of the injury of the knee bruise symptoms, you can carry out local ice cold compresses, can promote vasoconstriction to prevent the aggravation of the condition; 24 hours can also use infrared lamps to carry out local physical therapy, to promote the bruise as soon as possible to dissipate. 2. Topical medication: You can apply local medication to activate blood circulation and remove blood stasis, such as Yunnan Baiyao aerosol, safflower oil, and so on. 3. Oral medication: take medication that activates blood circulation and removes blood stasis, such as Bundu Pill, Panax Ginseng Tablet, and so on. When using these medications, it is important to use them in strict accordance with the doctor’s prescription and under the doctor’s guidance, and it is also recommended to visit the hospital for X-ray examination of the knee if necessary.