Have someone pull it straight, place pencils/stints/something to keep it straight on either side of your finger to keep it straight and tape it up. Don’t allow your finger to bend during that time. If you can bend your finger you’re doing it wrong. If you can’t pull it straight it’s partially healed incorrectly and you should go to a doctor *NONE of this is medical advice, I have NO RIGHT to give out any medical advice, I have NO TRAINING. Follow this at your own risk,