Oh I just remembered this morning when I was using it! I dunno if someone has posted it yet, sure they have, but I'll post it anyways LOL.
Tea tree oil!! Indie had a halter misfortune when she was a baby, and it left a very noticeable mark right on her nose bridge and sometimes it can be difficult to keep the hair growing there. I keep a bottle of tea tree ointment in my kit and it helps keep her nose from looking too abnormal, also worked really well on a really bad saddle sore she had last month, cleared it up in two weeks.
It's a little pricey... BUT, the 4 fluid ounce bottle I have has kept me for two years, and it's only half empty!
So that could be something worth looking into :)