I used to use the 'Swat' stuff & came across some other *really* good stuff this past winter. It's called NU-STOCK out of Tennessee..costs $25 (and some change) for 2-12 oz. jars (including postage). All that is in it is: Sulphur, Pine Oil & Mineral Oil. Says on the jar "for use after dehorning, castrating; mange, cuts, bruises, burns, swelling, soreness, loss of hair, tender hooves, etc. Eliminates soreness & promotes fastest healing." One thing I like about it is you only have to put it on *
once every 3 days*! The drawback is you smell like the Sulphur for the 3 days, too! (But not too bad--unless the critter you're treating thinks you need a bath in it.)

But its worth it. Keeps the flies off nicely & helps heal the wound with limited scarring & promotes the hair growth after healed. Their website is: nustock.com
When my horse decided awhile back to 'dehorn' 1/2 of one of my calves' horns...well I slathered this stuff on & didn't have any infections or problems. I use it on all the critters around here when they have a cut, wound, etc, & also used it on the calves when we casterated them & will use it on the horse when I get him gelded. (Shh...don't tell him!) ;-)