I have had epidural injections for herniated disks as well. Did not stop me from lifting. However, I went real light and did lifts I knew would not screw me up while rehbing. This kept me in the gym at least and doing some real light stuff for high reps at least kept me in shape until I got better. You can also gague yourself for increases and other movement. In other words, go to the gym and even if it's a sissy workout do it. Might spend some time just doing the girly machines for a bit but keep it light, take it slow and you will be good. And you will keep your sanity.

__________________
The Fool say in his heart "There is no God"