Hi,
You should get some Trental to help with any erection pain caused by your injury. It will take time to heal.
If you get a curve/bend in your penis later because of the injury, you should consider a VED medical device to help straighten it out and stretch out the scar tissue.
I had a similar injury and it took about 3-4 months to properly heal. Be very carefull when having sex until it is strong and healthy again.
A good VED is excellent in promoting good penis health. Think of it as physio-therapy for your injury. It is not a sex-toy......but an exercise tool to promote good blood-flow..etc.