It is the toxins coming to the surface that's causing your itching. I never had itching like you describe, so I can't relate, but I know it's driving you crazy. I am so sorry.
Just tell yourself this.......How many years did it take for me to become this toxic? So, I am going to have to get worse before I get better. Compare it to exercising after so many years of being a couch potato. Those first few times you exercise, you think you are going to die. But, each time gets a little easier and and little easier until you just feel so great and you are thinking.....I AM GOING TO EXERCISE FOR THE REST OF MY LIFE!"
I believe after a few more flushes, you will be here encouraging others who are new here and you will be sharing your experiences.