Thanks landroverroy, I have ordered a frobut bucket, but it won't be here until Monday so I'll pop to countrywide and see if I can get some salt and sulphur. I guess you mean loose salt? Also how much do you think is a good amount to mix? I don't want to mix too much and then just tip is over and waste it.
Thanks
Yes loose salt -just buy a packet from a shop and add a similar amount of sulphur. I don't know how many sheep you have. I was treating up to 100 at a time, (I gave it to all of them) so I bought a large tub of sulphur from my farm merchant, and gave it to them until all signs of orf had gone. With just a few sheep you can get a small quantity of sulphur in the form of "flowers of sulphur" from the chemist.
It looks like yellow flowers but easily breaks up into a powder for ease of mixing with the salt.
Even with a few sheep you'll easily get through at least one packet of salt (from the grocery store). It's surprising how much they will take. You will need to put it in something they can't easily spill and that can be the difficult part!