My horse has a small bump on his back that has been there about 3 days without changing. It is about the size of a small pea, it is rock hard, and he has no reaction when I press on it - in fact, it's right under his saddle area! It's not hot or swollen either, just feels like a little rock under his skin.
My coach suggested it is maybe a warble fly or something that has burrowed under his skin. Anyone have experience with this? I'm on the west coast of Canada, if that helps...I don't know much about what we have for insects around here.
Thanks for any suggestions - I know I will eventually have to call my vet if it doesn't go away but thought I'd try my luck here and see if someone know!