Not sure this line of questioning is too helpful, I mostly wanted to know some taking care tricks, but ok.
Nothing new has occured, the rash could have started with an alergy to deoderant causing the rash to get so large that it was difficult to go down. There is no lice, or at least none that I can see.
The rash likely increased in size while at my friend's house due to friction from increased activity and nervousness (I am an introvert who acts like an extrovert so I am always very uncomfortable at a friend's house.)
It is red, extremely dry, swollon, and dead skin quickly clings to it, sometimes I get cuts and openings in the skin that bleed just from the rash. Right now however the rash has receeded and my skin is just red and feels like ordinary skin so hopefully it is going away though Thursday I am going back to my friends house. Outside the rash area my skin has broken out something fierce with coldsores on my chest, a bit lower, my back, my shoulders, actually just all around the areas where my armpits are, It wouldn't be unusual but I've been washing more then ever so I should be better less of this junk.
As for "Scrub it hard" that would be a no go from sites. I did that at first because the excess skin bugged me, but from what I found out that aided it in getting so large. In fact sites say not to use soap, but instead cleanser, because that dries it out.
No shots and I have scratched... Right now the itches are the painful stabbing kind and today I suddenly had an overwhelming stabbing pain from the itching so I had to quickly take a shower almost on the spot. I used Exfoliant body wash and that worked magic. Actually the itching is the part I want to go away... If feels like I havn't taken a shower in weeks... I want to just scrub the skin right off my back right now (Which is tough... actually I am so tall it is hard to even get my legs because showers are so small. I've sat in showers before and that helps quite a bit)
My Plan is that when I go to my friends house I'll start the day with the Rash cream and then partway through I'll put some more on. I also have First Aid Sprey and it is more painful then I expected but I can take it.