Recovery time for a strained back muscle is typically 3 to 4 weeks, which may vary depending on the severity of the injury and how well the patient recovers. A back muscle strain is an injury to the muscles, fascia and ligaments of the back. You can choose pain relief creams such as Bone Pain Paste or spray Yunnan Baiyao Spray to help invigorate blood circulation and remove blood stasis, and the recovery time is usually 3~4 weeks. If the strain is more serious and the pain is obvious, you can take oral painkillers such as meloxicam tablets and celecoxib for treatment, the recovery time is usually about 5~6 weeks. If the pain is not relieved for about a month after the back muscle strain, the patient should consult a doctor in time to exclude the occurrence of back fracture. Usually it is recommended to try to rest in bed, avoid repeated bending, exertion, heavy physical labor, which will help the repair of soft tissue injury.