Is There A Treatment For Back Pain Caused By Epidural?

I had epidural 11 weeks ago when I had my daughter. The injection site was sore for several days, but it went away. Few weeks later I started experiencing sharp pains at the injection site, almost like having it done again. Instead of getting better, it has only gotten worse. I feel that pain even if I lean forward only slightly, and it's very bad when I bend over.
I was wondering, if there is anything that can be done about it. I heard a chiropractor might be helpful, but my insurance does not cover them. Any suggestions?
Thanks