I mentioned in another piece that I love to use coconut oil and green clay to help when our ponies are suffering from winter issues such as mud fever or rain scold along the spine. I was asked how I use them. I do literally place the coconut oil over the sore areas so that it acts as a barrier. If it is scabby I use coconut oil. If it looks a little more raw I use the green clay. This has been hugely beneficial for our herd.
I will add though I have explored this in my own way with the herd so seek professional advise for your animal.
love to you and your animals.