I have the weirdest rash that occurs on the back of my neck from time to time. It is a string of perfect red circles, each one about the size of an M&M... It does not itch, it's not scaley, it doesn't hurt but when I run my fingers across it , it feels a little burny or sensitive. Not much at all though... I have searched the internet everywhere to figure it out. It is not raised. Can someone please help?