brother idhi too much untundhi..I suffered literally for 13 years..India lo doctors ayyaka..Germany lo consulted around 10 doctors..no use.
But finally oka lady doctor gave one ointment which eats your skin and helps to grow new skin..like that it cured finally. If you want, I can give you the screen shot of it, with that you can try to mix the components in some pharm lab.
kerala lo near plakkad - kottakkal arya vaidhya shala,aryuvedic hospital
their medications work really good for psoriasis and skin allergies
for complete in patient treatment you have to stay there for 30days it costs around 80K for food,treatment and accommodation and next you have to take medications
the best i know right now
kani okati permanent ga thagipovatam ante kastam