Root canal treatment is an often straightforward procedure to relieve dental pain and save your teeth. It has a false reputation for being painful. The pain that is felt comes from the infection and not from the treatment. The treatment does not cause pain; it helps to alleviate it. The dental surgeon will relieve the pain of the procedure by numbing the tooth and surrounding area with local anesthesia. For the first few days following the completion of a root canal, the tooth may feel sensitive due to natural tissue inflammation, especially if there was pain or infection before the procedure. It is temporary, and over-the-counter (OTC) pain medication may be enough to relieve this sensitivity or discomfort.