Ustekinumab
"I am 41, I have had psoriasis since I was 3 and was misdiagnosed from the beginning as anything from warts to cradle cap. I've used Cole tar, all of the lights(including PUVA), steroids, vitamin D, diet, Chinese herbs, acupuncture and methotrexate ( probably more I can't remember). I have never been more clear than I am now. I've had no side effects that I am aware of and couldn't be happier. 

I was afraid of biologics, but I should have embraced them sooner"