What are the best treatments/medicines for Seborrhoeic dermatitis?

The main cause of SDis overreaction of the immune system. Identifying certain foods, chemicals, etc can be very helpful in battling this disease. I try to avoid soy and milk products which trigger my flare-ups.
After using number of prescription drugs I’ve turned to the natural treatments.
Now I use anti-eczema herbal remedies from serenaskin.com, which aim at the root of the disease - the immune system, and are steroid-free.
After about 2 weeks of using ointment and spray my skin has been cleared up and now I just continue with anti-eczema extract, which controls the immune system. My skin has been clear for months now.
It is the only treatment I have found that provides me complete relief when I use it as directed.