No we dont sponge, but we do run teasers in with them before tups.
Purple spray is crap, tell him to pay extra and get proper stuff from vet, terramycin etc usually a blue spray. That violet over counter does nothing. Any that need treating we bring into a hospital pen, isolated from the rest. Once sorted she gets notch in ear. If one with notch comes in again with bad feet then it's time to meet her pitta bread of destiny.