psoriasis?

Charlie • I like cats and pizza a lot. I'm married. 21. Always hungry.
Does anyone else have psoriasis?
What do you do to get it to go away for long periods of time. I've had it for a couple years now and I'm so tired of it. 
Luckily, I can hide most of it. But I do have it on my face and scalp, so its harder to hide that. ): 
I have cream I use, but it only goes away for a couple days and then comes back.