E.S.
Was she sick at all recently? This happened to my son when he was 2 and it was deemed a "viral rash" by the ped. It happened a short time after he had a cold. The rash lasted for a few months, but eventually it went away. But what you are describing (goosebump-looking, not red at all, torso area) is exactly what he had. Didn't bother him at all, thankfully.