Methods: Prospective, interventional study with longitudinal follow-up for 8 weeks with 30 patients with sciatica caused by disc herniation receiving MD-Lumbar injection, 4-position para spinal injection and MD - Ischia injection along the path of the sciatic nerve 4 positions with 2 treatments weekly (3 days apart) for the first 2 weeks and 1 treatment weekly for next 6 consecutive weeks.