What is the reset sequence on ignition for a 2001 Ford Focus?

I used the wrong key in the ignition. When i took it out and used the right key, something hung up inside the ignition. I've used a bit of oil and the correct key went in and the ignition turned on, but only one time. Now it seems like a tumbler inside the ignition housing it's preventing it from turning completely on. Can you help me? Do i have to remove the entire ignition?