Alas, I have no photos
Or pus, but I hope this is appreciated anyway.
My four year old DS had an enormous verruca, approximately 7 mm in diameter. It was painful for the little lad, but quite magnificent and we diligently applied Bazuka nightly. For a while it looked as though it wasn't going anywhere and it grew a hard callous topping because he wouldn't let us file it.
After speaking to the pharmacist, the very day we bought a £10 freezing kit for the blighter, this beauty went black and very dry ( but no redness, swelling or pain - if there was I wouldn't be posting this tale).
We watched. We waited. This evening, after his bath, DS started picking. And burrowing. He pulled the whole thing out in two goes. This verruca lump was about 3mm thick, a beauty. DS sat and picked it out with an expression of utmost seriousness on his little face. His little foot is now fine, although now has a little pale pink crater.
Oh, how I wish I had taken a picture. Oh, how I almost wish for one of my own.