Your leg symptoms appear to be secondary to what we call as lumbar radiculopathy, which is pinched or irritated spinal nerves in the lumbar spine area (if back pain is present then it further strengthens the above possibility, but if back pain is absent it does not rule out this possibility because back pain may or may not be always present). The pinching or irritation of the spinal nerves result secondary to arthritis/bone suprs, disc bulges, disc herniation, spinal stenosis, or slipping of the vertebra in the spine etc. Another condition that can mimic pinched or irritated spinal nerves in the lumbar spine is sciatic nerve injury and this injury occurs outside the spine, usually in the hip or buttock area.
If the diagnosis has not already finalized in you then you need a test by name EMG/Nerve conduction study (a nerve & muscle test) of the leg & lower back along with an MRI of the lumbar spine/hip/buttock area. The EMG test will help exploring the possibility of the pinched spinal nerve or sciatic nerve injury, whereas the MRI will help in identifying the pathology in the lumbar spine or hip/buttock area that may be causing the pinching of the spinal nerves or the sciatic nerve injury.
The treatment options for your condition are grouped under 2 categories as below;
1) Conservative (non-surgical) treatments
2) Surgical treatments
The conservative treatment options are generally tried first and such conservative treatment options include as below;
Nerve- pain pills like gabapentin, pregabalin, amitriptyline
Muscle relaxants like baclofen or tizanidine
Anti inflammatory pain meds like tramadol, diclofenac etc
Lidocaine anesthetic skin patches to the painful areas
Opioid (narcotic) pain killers
Electrotherapy including TENS (Transcutaneous Electric Nerve Stimulation)
ESI (Epidural steroid injections)
RF (pulsed or continuous Radio Frequency ablation)
SMT (Spinal Manipulative Therapy)
IDD therapy (Intervertebral Differential Dynamics Therapy - which is a specialized spinal decompression therapy)
PRP (platelet rich plasma) therapy etc
I see that you already have tried some of these above options like narcotics, patches, muscle relaxants etc, so you may consider the other options mentioned above that you haven't tried already. The above treatments can be arranged through a pain specialist, and some of these above treatments are available through a chiropractor too.
Also avoid excessive especially strenuous physical activities that involve the spine including twisting, bending the spine, lifting heavy weights, jogging, running especially long distance etc because all these activities can burden the spine further.
If the above conservative treatments fail then surgical treatments are considered too, however surgery is generally avoided as long as possible and tried only if the above mentioned conservative treatments fail.
Please ask me if you have any further questions.