Good ointment for a puncture wound on a horse?

There's this stuff called UNDERWOODS. Its a liquid that you put on the puncture and then you apply some baking soda to the liquid. Together they form kinda like a hardened scab over the cut. I've been using it for years and it works GREAT! You can look it up, or ask around at your local feed stores. I think it cost like 15-20 bucks. Check out the website testimonials www.underwoodhorsemedicine.com