I had a disectomy on L5 on February 3 2011, it was completely blown out and the disk was broken and piece of bone was pressing on the sciatica nerve. L4, L3 are bulging also. I was burning down my left leg and the pain was terrible. I had waited to the point that meds were not helping and I barely could walk or sit. I had my surgery first thing that morning and the only pain I felt afterwords was where I was cut. Only a 4" long cut and all stitches were inside. I was super glued together at the skin.
I was kept in the hospital overnight and went home mid morning the next day. My first real pain was when they got me up to walk the first time before going home. Don't know how to explain it but it was bad.

When I got up to get in the wheel chair to go home it was a lot better, guess everything had to lay back in place first time up.
Do not sit in any king of water until your skin heals complete, there is a chance of infection if you do. Shower is ok but for the first few times have your wife stand outside it to help steady you or get a shower seat. You will be weak and your meds will make you dizzy. I only had to take pain meds for 2 days then Tylenol was fine.
As I said, almost all my nerve pain was gone, it will take a while for the nerves to heal. As of today, I would say I'm healed up to 85-90%. I would be better but I'm stubborn and try sometimes to do things I shouldn't There are still days that if you move wrong, step wrong or stumble, there is some minor pain. Walk, walk a lot, it helps greatly. For the first couple of months, do not lift anything over 5 pounds, if you do you will feel it as the disk will compress. be careful how you twist as this will cause minor discomfort. And most of all, as my doctor told me, if you sit for more than 1 hour, get up and walk for 10 minutes or so. Do not sit for long periods of time. It will make your back hurt.
Also, no one has mentioned it but stay away from sex for a few weeks.

It can set you back if your not very careful.
There is a good life after back surgery if you follow YOUR DOCTORS instructions.
May God bless you with a speedy and complete recovery.
Forgot to mention, I'm 55 so the younger you are the faster you heal I'm told.