HELP! My daughter cut off the bridge of her nose with a knife! Will it grow back normally?

My d is in the ER right now and I am shocked. She HATED her nose but we are a poor family so I couldn't fix it. She had a nose bridge bump. She pressed on it ALL DAY and tried to make it straight, but it never worked. She thought her cartilage could flatten, but then she complained about how she couldn't breathe through her right nostril. What happened? She used to have perfect breathing. she got so upset she cut her nose bridge off with a knife, will it grow back and heal with surgery?