Sealing injections are injections that are very effective in relieving pain. Like a lot of athletes are able to participate in the competition temporarily after the injection. This hormone has a certain anti-inflammatory effect, the tendonitis or tenosynovitis, or soft tissue inflammation through the action of hormones, the inflammation subsides, but its pain is relieved by numbing drugs, numbing drugs now with lidocaine, outpatient hormones with Depo-Provera, is a medium to long-acting hormone, the action time is longer The pain is relieved by anesthetic. So the patient after the injection of closed, these two drugs will work separately, the anesthetic first appeared to be the analgesic effect, so that the local pain symptoms relief. Then in the process of slowly disappearing the power of the anesthetic, the hormone effect began to take effect, will slowly subside the local inflammation, generally long-acting hormone action time is longer, so the patient after the closed treatment, the symptoms and inflammation will obviously subside, the disease is completely relieved. However, for patients who are not well rested, local symptoms will flare up again, but medium and long-acting hormones, generally cannot be injected again within a short period of time, requiring more than 1 month to play again. Of course closed needles need to be injected in a regular hospital and observed, because clinically seen some patients after the injection of closed needles, there is an allergic reaction, the consequences are more serious, so we also need to be careful. In addition, closed needle hormone, hormone anti-inflammatory effect actually has certain side effects, will reduce the local immune capacity and local repair capacity, may lead to tendon, ligament degeneration, repeated closure led to spontaneous rupture of local tendons, so closed needle injection should also be careful.