I too would clip.the feathers.... You can also use Listerine the tan one to controle thrush. Store brand is fine, just make sure it is the medicine tan one. My master farrier told me about it years ago. If it gets real wet and you need to dry and harden the frogs use Betadine. If they get real mushey do a Betadine + Sugar pack on the foot. I also confirmed this with my old time vet, he said yes save yourself a ton of money on stuff like Thrush Buster ect. I always keep the tan Listerine in the barn, trailer and truck. I keep it everywhere like Duct Tape and hay twine.
Hope this helps,
Maye