Neurodermatitis
To stop the stubborn itch-scratch cycle, you must stop scratching the affected area. It's bound to be tough, but you can do it.
Prescription medication. Wet dressings and relax.
Take care!
thank you for posting your skin problem over this site. I can well relate to your suffering because i've got mine too. And mine is worst because it is on my scrotum and would sometimes run down to my thighs. The rashes on your back looks the same with mine.