Abstract: Disclosed is a pain-reducing device that has a simple structure providing intramuscular stimulation to relieve pain of an affected part. The pain-reducing device includes a butterfly-shaped handle 51, a scalp needle 54 having a canaliculus shape that is provided at a side of the handle 51 and communicates with a syringe insertion unit 53, and a magic silk thread 55 bent at an end thereof and inserted into the scalp needle so that the scalp needle is inserted into an affected part to provide intramuscular stimulation. Since pain is easily and precisely reduced, the effect of the treatment effect can be maximized.