People here have said good things about Practice Gloves. Apparently they allow you to still feel the strings without all the pain.

Once your fingers can play again, you can use the glove when the fingers start to hurt. That could give you some more practice without the pain. You will still want to build your callouses. Soon you should be able to go glove free for longer streches of time.

Karl know where of he speaks about blisters, they reek havoc on your callouses, they hurt and they can really set you back. It is depressing to have to remove a large flap of, what were, perfectly good callouses from your finger tip.