This may sound weird, but do your horse's feet smell normal? If they have thrush, you can usually smell a rotten smell, like a combination of burning hair and rotting vegetables.
All the products mentioned above are great - in addition, my farrier recommended a product called "tomorrow" when my horses had thrush. It comes in tubes (amazon has it) which last for several treatments. It's actually for cows, was very reasonable in price, and killed the thrush in a few days!
If it's been a long time since your horse had her teeth done, she might have some soreness afterwards if the vet has to do a lot. Having Bute on hand is a good idea, plus if she is sore, you might want to feed her a warm mash for a couple days if she's having trouble chewing.
All the products mentioned above are great - in addition, my farrier recommended a product called "tomorrow" when my horses had thrush. It comes in tubes (amazon has it) which last for several treatments. It's actually for cows, was very reasonable in price, and killed the thrush in a few days!
If it's been a long time since your horse had her teeth done, she might have some soreness afterwards if the vet has to do a lot. Having Bute on hand is a good idea, plus if she is sore, you might want to feed her a warm mash for a couple days if she's having trouble chewing.