Are you wrapping it with vet wrap or gauze?
I would peel as much scab away as possible, and try to squeeze the hard core out.
If the hard core doesn't come out soak, apply the Prid again and wrap it.
If the hard core does come out, I'd soak, apply a triple antibiotic salve (the kind without...
Does it feel hot to the touch?
If so she has an infection. Definitely soak it, look for any small holes or scratches. Put some Prid or another drawing salve on it and do that once or twice a day.
Welcome to BYC! I'm not a turkey owner but go ahead and ask. Someone will be able to answer. If not, we can point you in the right direction. We have a forum for medical questions and I'm sure we have a turkey forum.