Left buttock sciatica may be caused by lumbar disc herniation, pyriformis syndrome, trauma, etc. Different causes are treated in different ways, and common treatments include medication and surgery. 1. Lumbar disc herniation: patients can be treated with non-steroidal anti-inflammatory and analgesic drugs, such as meloxicam tablets and ibuprofen extended-release capsules, which can effectively relieve inflammatory pain. If the patient is accompanied by muscle spasm, the patient can follow the doctor’s instructions to use chlorzoxazone tablets, tizanidine tablets and other muscle relaxation drugs for treatment. If the pain is too serious and the conservative treatment is ineffective, surgical treatment can be carried out, such as endoscopic nucleus pulposus removal of intervertebral discs, hemilaminectomy or anterior laminectomy, and so on. 2. Piriformis syndrome: oral or local topical diclofenac sodium extended-release tablets, celecoxib capsules and other non-steroidal anti-inflammatory drugs for treatment, but also oral or intramuscular injections of non-opioid central analgesics, such as Lidocaine Injection, Prednisolone Acetate Tablets, Trimethoprim Injection and so on, can be effective in relieving pain. 3. Trauma: left buttock sciatica may also be caused by external impact, generally do not need special treatment, after a period of time can be recovered on their own, if accompanied by other symptoms, should be timely to the hospital for medical treatment, examination and treatment under the guidance of the doctor. Specific treatments need to go to the hospital to confirm the diagnosis, under the guidance of the doctor to choose according to the situation, do not unauthorized use of medication, stop or change medication.