If she isn't head shy, i'd say maybe go for it? Otherwise let nature takes it course, and i'm sure within a bit it'll eventually rub off. That happened with my BP when i had it, some on the head left over, was there for maybe like 4 days at the most, and then it was gone. Haven't had it with my Red-Tail, he's very headshy so i'd never try it on mine personally.

If any of that even makes sense?