Is this a new tank that you're working on cycling, or do you have fish in it?
If you're cycling and having a nitrIte spike, then you're moving through the cycling process. Next should be a nitrAte spike, and ammonia & nitrIte should fall to 0, at which point the tank is cycled, and you can do a water change to lower the nitrAte a bit.
If you have fish in there, do a water change. Have you been keeping up with regular water changes?
I'm not sure what you mean by bacteria "problem" -- you want beneficial bacteria, and in theory I guess that product is meant to help introduce it to your tank. I've heard some people say they don't work at all, or they help slightly, but don't make a huge difference. I've never tried any of those type products (Cycle, BioSpira, etc.) myself though.
(Edited for horrible spelling errors, haha)