Hi all, I too suffer from severe back acne (since teenage years, and now I am in my 30s). It must be genetics because my parents have moderate back acne. When I say it's severe, I mean I would have, on average, > 10 large cystic acnes on the back. I suffer mild to moderate facial acne. I have tried everything, including Accutane, birth control pill, etc etc. Accutane helped and I was clear for about 1.5 years. After I discontinued Accutane it came right back. Birth control is also extremely effective, but I didn't want to take that forever so I discontinued it. So without further ado, here is my regimen (and it worked for me after 4 weeks of consistent use). This regimen was finalized after years of experimentation.
Supplements: Sundown Naturals vitamin supplement called "Hair, Skin, & Nails." I got it from CVS and there was a buy 1 get 1 free sale for this brand of supplements. Sundown Natural s also make tea tree oil. So I got both for the price of one (yes the vitamin aisle at CVS has tea tree oil; I was shocked to see it there too).
Diet: Cut out all diary products (this includes cream in my coffee; I switched to soy creamer).
Hygiene regimen: clean shirt/PJ when you go to bed everynight. Shower everyday or after gym workout. Use Head and Shoulder shampoo/conditioner. I use Neutrogena body acne wash, but I don't scrub my back. I leave the lather on my back for ~ 1 or 2min then wash it off.
Topical regimen: Get the Neutrogena back acne body spray, but keep the spray bottle (because it is a good spray bottle and allows you to spray upsidedown; the formulation that comes with it was useless on my bacne though). I fill the empty spray bottle with pure tea tree oil (1/2 glass bottle that the oil comes in with). Fill up the spray bottle with Neutrogena clear pore oil-eliminating toner (the blue one). Shake every time prior to spraying. I apply it to my back after shower and dried my back with a clean towel. 10 spray to each side of the back (left and right), and 5 spray to the lower middle back. Let it dry for ~ 1 min, but it doesn't have to be completely dry. I notice that the medication stays on your skin regardless if you put your shirt on when your back is still slightly damp after the 1 minute waiting period.
I did this consistently for 1 month and I am now completely clear! Yes tea tree oil smell can linger but I like the smell so it doesn't bother me. The skin on my back is mildly dry but I prefer dryness over acne! I hope this will help you. Please let me know if you respond to this regimen as well as I do.
This regimen does not help with the red scar... That is my next treatment goal. I am just so glad that I am able to get rid of back acne for good after 15 years of struggle.