A New Injection Method of Nerve Block Combined with Local Infiltration Anesthesia for Relieving Pain of Horizontal Neck Lines Injection.

Filler injection is an effective method for the treatment of horizontal neck lines, but injection pain presents a burden for many patients. Topical anesthesia and local refrigeration are common methods to relieve the pain of injection, each of which has disadvantages. The transverse cervical nerve is the main innervating nerve for pain sensation in the anterior skin of the neck. The authors performed nerve block anesthesia and local infiltration anesthesia on one side of horizontal neck lines and applied topical anesthesia cream on the other side of the neck in 100 patients. The pain level with nerve block anesthesia and local infiltration anesthesia was reduced by 81% compared with the pain level with topical anesthesia. This treatment did not affect surgeon judgment on neck line shape and shortened treatment time. This new method can be used to relieve the pain of neck line injection.