Will acupuncture or herbal medicine be effective for shoulder stiffness and soreness?

I have been experiencing severe shoulder muscle tightness for a long time. When I focus on something and work, my body tends to tense up, which causes my muscles to stiffen. While massage or physical therapy provides temporary relief, the symptoms do not improve and keep recurring. I am wondering if acupuncture or traditional Korean medicine treatments are also available. I feel that acupuncture might be effective for improving blood circulation and relaxing the muscles. Over time, the shoulder tightness has become so severe that it is causing discomfort in my daily life.