How long do I leave peepers on?

I had to resort to a pinless peeper for my JG last week. She was just bullying my BO to pieces. And I only have the two hens. So the BO just got the brunt of her aggression.

Well, I was horrified that I had done that to her. I still am. But 48 hours later and what an improvement. They really work.

My question is, how long do I have to leave it on? Do you just leave it on till the plastic dries out and it falls off on it's own?

I'm hoping it stays on a few months. I just bought some baby chicks today. So in about two months, I'll S-L-O-W-L-Y introduce them all to each other and I'm really hoping that the JG accepts them with grace and dignity.