Will PRP stop a mass shed of hair after taking a 3 month break from Propecia?

I'd been in Propecia for 3 years and decided to try Lazer Hair Regrowth. After three months of being on laser and three months off Propecia, but continuation of minoxidil, I saw a mass shed of hair to a level worse than it's ever been. I've started Propecia again recently, not enough time to see results. I'm wondering whether PRP will stop the mass shed and help me regrow hair lost during the shed.