A sprained back tendon requires bed rest, localized ice packs, blood circulation and pain medication, and physical therapy. A sprained back tendon will cause back pain and limited movement, and requires bed rest for at least 1 week. Local ice packs can reduce swelling and pain, and hot compresses can be applied after 72 hours to improve local circulation. Under doctor’s guidance, apply blood-activating and pain-relieving drugs such as Panax ginseng tablets or blood-activating and pain-relieving capsules, and topical Yunnan Baiyao aerosol. Ultrasonic physiotherapy or deep red light treatment can be taken. If there is no relief through the above methods, you need to go to the hospital in time to check the extent of the injury and take further treatment.