Ligament injuries first require assessment of whether the damage is acute or chronic before considering medications. For acute ligament injuries, there are key principles to follow. First, the injured area must rest and the joint should no longer be active. Second, immediately apply cold compresses. The temperature of the ice-water mixture touching the skin should be between 4℃ to 10℃. Apply the cold compress for about 10 to 15 minutes, generally not exceeding 20 minutes. If there is severe swelling, you can continue to apply cold compresses two hours later. Then, elevate the patient's limb and apply compression bandaging to the injured site, which forms the treatment principles for acute ligament injuries. For chronic ligament injuries, different situations require different approaches. For ligament injuries that do not affect joint stability, some topical medications can be used. This can include traditional Chinese medicines or anti-inflammatory and analgesic patches, which mainly improve local blood circulation and reduce local chronic inflammation. (Please use medications under the guidance of a doctor.)