Sleeping on one side of the back discomfort should be dealt with according to its cause, common causes include lumbar disc herniation, lumbar muscle strain, etc.. Treatment methods include general treatment, medication, physical therapy and surgery. 1. Lumbar disc herniation: it will make the patient have the symptom of lumbar pain, or one side of the lumbar pain when sleeping at night, and the patient with serious condition may also compress the sciatic nerve to cause sciatica, the patient with pain symptom can use non-steroidal anti-inflammatory drugs, such as celecoxib, and if the lumbar disc herniation is more serious, it is recommended to use the clinical decompression of intervertebral disc nucelus removing surgery. 2. Lumbar muscle strain: it is due to the chronic accumulation of injury, resulting in muscle spasm, triggering pain, you can use non-steroidal anti-inflammatory drugs for pain relief, such as celecoxib, for patients with lumbar spasms, you can use etipirasone hydrochloride antispasmodic. 3. Fasciitis: due to long-term lumbar strain, cold and damp and other factors, triggered by the lumbar fascia aseptic inflammation, localized inflammatory exudate, often appearing lumbar side of the pain, clinically available non-steroidal anti-inflammatory drugs, such as celecoxib and other drugs, can play a role in pain relief as well as reduce the role of inflammatory infiltration. Sleeping on one side of the back discomfort may also exist for other reasons, after resting without relief, it is recommended that timely medical examination and targeted treatment, the above drugs need to be used under the guidance of a physician, avoid self-medication.