Back pain, if there is no obvious trauma, may be caused by lumbar muscle strain or lumbar disc herniation, etc. You can relieve the symptoms through general treatment, physical therapy, medication and other methods. 1. General treatment: You should pay attention to proper rest and reduce bending and other activities. Avoid keeping a posture for a long time or repeating a certain action, such as prolonged bowing, bending over and working at the desk for a long time. To strengthen the local warmth, avoid cold. 2. Physiotherapy: Low and medium frequency electrotherapy, infrared therapy, ultrasound therapy, etc. can be used to provide physiotherapy to the sore parts, which can promote blood circulation, improve the function of muscles, nerves and other tissues, and help to promote the recovery of tissue function and relieve the soreness. 3. Medication: Oral non-steroidal anti-inflammatory drugs such as ibuprofen, diclofenac sodium, meloxicam, etc. are helpful to reduce soreness. It is recommended to use medication under the guidance of a doctor, not blindly self-medication to avoid adverse effects.