Thanks for writing in.
It seems you are suffering from sciatica
and no pain killers would help in that. This occurs due to the compression of the sciatic nerve
and I would suggest the following to help relieve the pain:
a. Avoid bending forwards and picking up heavy weights
b. visit an orthopaedician and talk to him about drugs like gabapentin
. This should bring considerable relief.
c. The following stretching exercises will help relieve the pain:
d. Use a hard mattress and avoid using a pillow.
This will greatly help relieve the pain.
Hope this helps