Hi Kelly, yes you’re not supposed to have it on fingers or toes. They keep an eye on the colour as they turn blue if you are lacking oxygen. Also, the things they clip on your fingers (to monitor your oxygen and blood pressure I think) don’t work if you have polish on. I took mine off both just to be on the safe side. I hate not having polish on my toes but don’t worry, you’ll be wearing those gorgeous stockings they give you so you won’t be able to see your feet lol xx