How to manage mud fever?

[Surbie]

I don't think so - I believe the sulphur is what blocks up spray bottles, so yours is likely just oil. It should say, though. If it doesn't mention sulphur, it won't have any!

On that note does anyone have any tips for applying pig oil with sulphur? I shake some onto an old facecloth and wipe but it's a messy business! Anyone have any better ways?!

I use sauce bottles like these - the nozzle can get right into feathers to the skin and then it's just a case of working it in with fingers.