There are many reasons for the pain at the junction of the left shoulder and neck, such as excessive activity or repeated external stimulation of the left shoulder and neck, which can lead to strain on the local muscles and muscle groups or cold, which can affect the local qi and blood flow, resulting in qi stagnation and blood stagnation and meridian obstruction, which can lead to pain. The patient should be instructed to reduce the weight-bearing activities of the left shoulder and neck, pay attention to keeping warm, and often apply hot towels or ointments to activate blood circulation and remove blood stasis, as well as traditional tui-na techniques and gentle local massage treatment.