Impaired bile flow is the first step to liver damage. It is proven fact in scientific literature and drugs impair/block the bile flow that is proved, too.
Bile acids or artichoke should be very effective for acute Seb. dermatitis cases like yours. It is probably very similar like psoriasis.
I would take B-complex (Jarrow B-right is great), Ox bile (3 x daily 1 500mg capsule) or artichoke extract (3 daily x 2 capsules of 500 mg at 5% extract of cynarin).
Soy lecithin is great to take for liver - it greatly helps. But is better take AM since it may cause lucid dreams when taken before sleep.