itchy

I was watching over my tortoise in my backyard yesterday, when I saw him scratching his arm against his shell I thought nothing of it until he repeatedly kept doing so. The grass also gives me the tingles sometimes but he's been the backyard countless times and I've never seen him do that, and...

Hello Y’all, I just noticed that my Russian tortoise Sheldon has a couple red patches (maybe a rash) and a small whiteish sore on his knee. I tried to get a picture but he kept moving so it isn’t the best. Please help me figure out what it is and what I can do to fix it.