I have CFS/ME too. For years my main focus has been on anti-candida treatment. But after following super healthy strict diets, popping loads of supplements, antifungals and doing a mercury detox what I thought was candida, still keeps coming back. Now, reading about parasites, it's said that parasite infestations can cause CFS. I understand yours is a skin problem, but thought I'd mention it anyway. I too have crawling over my body (but I think for me it's an internal thing) and especially scalp, nose, eyes and pardon me....anus.
I also have the weak liver, so in addition to small doses of herbs, I'm eating an anti- parasite diet.