Yes Tractor Supply carries it and it's very inexpensive, one of the best things you can have if you have chickens.Keep the drakes away from the hens - that is what I would do first. I am not sure how being computer literate or not affects moving the drakes, though.
And if they are pets, they are pets. Most members of BYC seem to respect that.
Blue Kote is a helpful liquid that covers wounds and with chickens helps prevent other chickens from pecking at existing wounds. Feed stores carry it, usually.