She wears a happy mouth bit and I have heard that rubber bits can cause sores if your horse has a dry mouth. Gypsy always foams/salivates a lot when I ride so im not convinced that is why, but it still could be because its rubber I suppose. The bit itself is in good shape but there is a bite on it from when I was using it on my other horse.
Any advice ? I was thinking of putting vaseline on her mouth and maybe trying to find her bit in metal.