We use NeoPredef powder on the cut edges of the ear, it helps with the itching as they're healing. I've never used a cone-collar after a crop, they tend to increase anxiety too much IME. (If your dog doesn't mind the collar, that's a different matter, of course.) We just keep the nails trimmed and smooth (we use a Dremel, but a file for acrylic nails works well, too) to minimize catching of stitches, try to distract the puppy whenever we see them scratching, and are liberal with the powder. (We also have a 'granny-dog' who cleans all the ears for us, and I'm a firm believer in the healing power of dog saliva. :wink: )