Treating tenosynovitis with injections is acceptable. Injections can significantly alleviate the pain caused by tenosynovitis and symptoms of limited joint mobility. However, it is imperative to take precautions during this treatment. Firstly, the injection contains steroids and anesthetics, so the number of injections must be limited. Generally, it is advisable to administer it once or twice a month. Excessive injections should be avoided as they can damage the local tendons or even the tendon sheaths, potentially exacerbating the pain from tenosynovitis or leading to spontaneous tendon ruptures. Therefore, the frequency of injections should be limited to a maximum of one to two times per month. Secondly, it’s crucial to ensure proper disinfection of the area during injections to prevent infections at the injection site and attend to potential bacterial infections. (Use of medication should be under the guidance of a physician.)