I woke up with it on my leg. i feel no pain & it doesnt itch. the mark is as smooth as my normal skin. i dont think this is a rash. what can it be?

Rash: Hi, it’s hard to say without a picture but there is a great app that may be able to help you get a diagnosis without being seen in person by a dermatologist. The app is called VisualDX and is one of the best, if not the best out there. Many clinicians, including myself, use it. Just snap a photo and it gives you a list of possible diagnoses. Good luck!