My husband has battled chronic psoriasis, for most of his teenage years and all of his adult life.
He has tried every treatment, every potion, every cream.
UV light treatments as recommended by his skin specialist worked the best, but it would burn the minimal skin not covered by psoriasis- so in the end, not a good treatment.
The cream starting with A, in the tiny tube, worked great- but took ages to apply when the psoriasis is all over his body.
He uses that cream on his face mostly.
His psoriasis seems to be coming good, with NO treatment at all :-)
Good luck Hun- every person in DH's family has had it at one time or another- so please feel free to PM me for advice.