Fingers can be clamped by the door after pain relief through the following methods: First, the affected finger with finger splints to avoid the affected limb finger activities, reduce pain symptoms, while using cold water for continuous cold compresses or intermittent ice packs with ice packs, each time for 30 minutes, 6-8 times a day, the treatment process should be avoided to avoid the affected finger moisture and frostbite, can quickly relieve the local pain symptoms and eliminate the swelling; Second, will be the affected finger for the Secondly, elevate the affected finger away from the heart plane, which is conducive to the venous and lymphatic return of the finger and reduce the local swelling and pain symptoms, and also put the affected finger on the chest at night, which is conducive to the swelling and pain subside; thirdly, take Chinese medicines such as CaoWuJiaSu tablets, HuLiShan capsules, PanLongQi tablets, etc., which can promote the rapid subsidence of swelling and pain symptoms of the finger.