One additional point - purple spray, waste of time I’m lead to believe, all the goodies were taken out a while ago. The new purple is in fact blue - Alamycin, we source from our local vet.
Not strictly true, IMO.
Purple sprays like Septicleanse are antibacterial and antifungal, and are useful in
preventing infection - of wounds, and after foot trimming where no active infection was found, or a very mild case of scald.
Blue antibiotic sprays are effective at knocking out
existing bacterial infections.
I am as guilty as the next person of using the blue spray as a preventative (because it's always to hand and the small tin is easy to have in your kit bag), eg on shearing cuts, but personally I suspect that Septiclense would be more effective as a preventative, and certainly if it's not just bacteria you are concerned about.