put it back on. Tooth was exposed and cold air/water was painful. I literally feel your pain. I also ended up getting a tooth extracted in that visit and that is what is bugging me now.
They had to remove the glue still on the tooth before the crown would go back on.
If you can't brush the teeth, rinse with warm salt water.
Hopefully, you can get it taken care of soon. I can't imagine going days like that.