I also got Seb Derm from Antibiotics . I had it for 2 years. I tried Paleo, fruit & veggie diet for several months but nothing really happened. Also tried 2 Liver Flushes with great results. First 75 stones and 150 in my second with bigger stones.
I will meet a doctor next week who research in the damage of Antibiotics and says I have a good chances to restore my gut flora/balance but that it may take some time. Seriously this disease f-cked my life for two years.
Good luck to you! Nice to know I am not alone in this world with SD but I feel for you bro! We need to keep fighting.