Linear scratch-like rash

I have a "rash" made up of narrow lines running vertically up my right thigh, hip and rib cage.  It does not itch, nor has it responded to dry skin lotions.  At first I thought I'd scratched myself; however, now with it spreading upward on the body and defined easily by touch as vertical lines. I am convinced that I should see a dermatologist unless it can be identified.  I live in Texas and wonder if it might be a parasite.

[Cricket48]

I appear to have the same thing and am really getting depressed and ovewhelmed with it as it has been going on for at least a year now.  It is almost like a bear scratched me and appears and then disappears.  This wakes me up from a sound sleep and when I get up to look at it it shows criss cross lines that look like bear claw scratches please help do you know what this could me.