I know and can feel your pain and you don't need to apologize for seeking help. We are all on curezone seeking cures for various ailments. My neice suffered with a similar problem to your for years and went to many doctors and many tests ----to no avail. Her hair fell out and scars formed all over her body. she tried ll the things you mentioned and more... After about 10 years, we were told about Neem Oil. Not sure if you've heard of it but to make a long story short- she ordered it as pure as possible (not the kind on Amazon because it's usually mixed with fillers and preservatives . Our grandmother lived in Nigeria and when we visited her, we were able to bring some back to the states. We placed it on my niece's skin and it took about 10 days to notice a difference in the skin breakouts and patches all over (even in her head and face). We couldn't beleive what was happening because we sort of expected it not to work... 4 years later and she is still healed and cured. Her blemishes have lightened up and scarring almost gone but she does not look leprous anymore at least. I highly recommend you try an African-grade Neem Oil. There's a site my family orders our Organic African oils from which takes about 10 days to come from Africa but its worth the quality of all their products. The link to the site is here http://zuwena-african-bodycare-products.mybigcommerce.com/neem-oil-100-pressed/
I hope you will keep us updated on your progress and I know it should work for you. Don't give up.