First of all, I have never had anything from the vets, in this kind of bottle! A large Brown mysterious bottle!
I have to thank everyone who has contributed to the answer to Rain Rot! So here it is. A Emulsion of Penicillin, in suspension. No, dont ask! Its a litre of this incredibly greasy stuff,even after application, and then washing my hands, my skin feels fantastic!!Lol! I have applied it to the offending areas on the horses back.
This was done yesterday, today I checked her out, and found that the scabs had already lifted!! The oily stuff must have something to do with that. now we leave the Antibiotic to do the rest.