For the neck and back? No, I would think of it for joints (ankle, knee, etc.), but not larger, more general areas...
@ctl74:
Hop on YouTube and search for "KT Tape neck" or " KT Tape back".
Used it myself and works a LOT better than I was expecting. I put some on the back of someone's knee and it stopped their headache almost immediately.
I think it's about $12/roll. I put it on my back for my shoulder. It took about 5 minutes but it DID work. 4951