If nothing else has worked, get a bottle of gentian violet and paint yourself purple. The itching will go away and you will feel instant relief, but you will be purple. Most of my stuff went away in less than ten days, I did not go anywhere. I still have lingering skin issues that I'm able to deal with in a less aggresive manner, if I have something that I can cover I paint it purple and it goes away. Have you tried any H202? Iodine?