Hello. I have marks that look just like chicken pox all over my body (except face). I've already had the chickenpox and I have no fever.?

You need to be. examined/have someone look at the rash. If you had chickenpox, you wouldn't have it again. You may have a different virus or a reaction to something you were exposed to. Rashes are very difficult to diagnose without seeing them. If you are a HealthTap Prime member, you can contact one of us that way and we can look at a photo of the rash.
See a doctor. There are too many possible causes of a rash like this to even guess. You need to see a doctor to be sure it's nothing serious. Get seen in the next day or two, when the rash is new; the longer you wait, the harder it will be able to make an accurate diagnosis. Good luck!