ICE..ICE....ICE. It helps with inflammation.
The doctor prescribed the naprosyn for inflammation so continue taking it regardless of whether you think it works for the pain. The pain will get less as the inflammation gets less. But KEEP taking the NAPROSYN. Stop the excedrin back if you are taking the naprosyn.
Stop as much things as possible and give your back as much rest as humanly possible. I know, the kids, etc.
I also got news for you, it sounds like you wrenched really good, and it will be a while before you feel normal again. You are thinking that this will heal quickly but back strains usually don't and you can take up to six weeks to heal. You are probably not feeling very good because you are continueing to irritate your back by not resting it, not taking the meds as prescribed and thinking there is a quick cure. You may not have time to deal with a bad back, but you really have no choice if you can barely walk after 2 weeks. I would imagine that the shot made you feel great and then you overdid it the 2-3 days the injection was in your system, so that when it wore off you were even worse.
Again, Rest, Meds as prescribed (there is a reason he gave them to you even if he didn't explain very well), and Ice.
The only other thing to try is a chiropractor. I have had really good luck combining all those things above for my recently pulled back. It happened at work. It took 8 weeks to feel better and is still sore if the doctor puts his thumb in it in certain places, but I can walk and bend again.
It really is your choice. Make things easy, get a girl to come help while you are there. Eat pre-made food, get mother to come help. Etc.
Back problems will continue to plague you if you don't treat it the way it needs, to completely heal. You can have an achilles heal in your back. With a weak spot for a long time to come and a back that will contine to be weak and easier to injure.
Take care of your back.
Good Luck,
L., RN