Following/Tracing a value as it's passed around in different registers / memory locations?

In Ollydbg I have an instruction address of a program I am debugging that has a specific value. That value is getting passed around in numerous loops. Is there any method in which I can 'follow' that value without manually stepping through each loop and trying to keep track of where the value gets transferred to? I simply can't do that manually for 15000+ instruction loops.

I'm ultimately trying to trace it to an encryption function, at which point it should disappear and I'll know I've reached the encryption in this program. If there's some way I can 'autofollow' it and make the program pause when it disappears totally then it should lead me right to my encryption function.

I have doubts in my head that something like this is possible but I figure it wouldn't hurt to ask.

If needed, my operating system is Windows 7 x86.