Can you still ride a horse if he has Thrush thank you?

Thrush is the infection of the frog of the horses hoof. You can normally tell, because when you go to pick their hooves, you smell something really strong and also you will probably see a black puss-like liquid. Thrush can occur when horse the horses hoof is trapped in moisture, for example, if your horse lives outside and stands in the mud all day, it most likely will get thrush. Hope that helps!! ~Makenna~