You are having L4 nerve root compression
. usually It requires Epidural injection which lead to decrease in swelling around the disc and nerve root.it will relieve the symptoms. But rest and physiotherapy
are the compulsary things. If 2 injections at one month interval will not do then a discectomy
( removal of the protruded disc surgery) is required. In India its a day care procedure now. your neurosurgeon will guide you regarding this depending upon the severity of your disease.