Cold in the lumbar region will lead to local vasoconstriction, resulting in poor blood circulation in the lumbar region, producing relative hypoxia and ischemia, which will lead to local inflammatory reaction or stimulation of metabolite accumulation, resulting in pain. This symptom can be recovered in a short time by restoring local blood circulation, usually in 3-5 days. It is important to provide appropriate warmth, blood circulation treatment and promote local blood circulation. To keep warm, wear enough clothes, don’t let the waist get cold again, pay attention to cover at night when sleeping, and pay attention to the room temperature not too low. At the same time, you can take some oral medications to speed up the recovery, such as root pain pellets and Tongluo Kaiqiao tablets, which can activate blood circulation and promote local blood circulation. Physical therapy is also effective, including hot compresses, baking electricity, spectrum irradiation, moxibustion, etc., can quickly relieve the local poor blood circulation, after 3-5 days the symptoms can be relieved.