My mare has a cute little pink nose and I find that putting diaper cream on her helps a lot! It’s thick and has zinc in it, it doesn’t have too weird of a smell either.
I was also told that sometimes once a horse sunburns he can become immune to getting sunburnt. Idk about that, but sunscreen is definitely a good idea. Also if the horse tends to have lots of those soft little velvety hair’s on their noses they sunburn a little less. I sunscreen my mare every once in a while if she seems to be burning bad, she’s outside 24/7, but she doesn’t seem to burn hardly at all after a while
“Horses are incredibly forgiving. They fill in places we’re not capable of filling ourselves.”