If I bring her in to my regular vet he may recommend it at this point. Not sure. Any surgery where they open up the intestines is pretty drastic, so he might say it's still better to wait. I'll phone him and ask.

You're right, in the long term it wouldn't help; it would solve the acute situation and then I'd have to do other things to help it not happen again. I could shave her periodically or something. ;-) And definitely smear Petromalt (intestinal lube, basically) on her so she has to lick it off.