The first thing you should do is go to the hospital to see what is causing the bruising and swelling in your fingers, and also to find out if the bruising and swelling is serious. Because some bruises and swelling are severe enough to restrict blood circulation to the finger, leading to hypoxia and ischemia of the finger, which can lead to necrosis of the finger in the long run, the first thing you should do is to go to the hospital for medical treatment. Secondly, elevation of the affected limb, braking and resting, and supporting symptomatic treatment can be taken. Braking and resting means avoiding local activities to prevent further aggravation of swelling. Elevation of the affected limb can use gravity to promote venous blood return, which is conducive to swelling. At the same time, some anti-inflammatory and analgesic drugs can be taken orally to promote the dissipation of local inflammation, commonly used are Fenbid. You can also take some drugs to promote venous return, such as Mai Zhi Ling and Horse Chestnut Seed Extract, which can quickly promote the dissipation of localized swelling. In addition, if there is local skin damage, it is necessary to carry out appropriate disinfection and disposal to avoid secondary infection. Therefore, patients are advised to go to the hospital for consultation and take regular treatment.