I have had every type of psoriasis that there is for forty years, including Koebners. Nothing but steroids have worked. BUT I have great news. I was given powerful steroid (betamethasone and cortisone combined) but told not to use it on my face. My outbreak extended over the whole of my body from scalp, lips (rare) face, to plaque psoriasis head to foot.
I have therefore had to rely on natural remedies for the face and lips. Aloe Vera applied to the face instantly gave relief from the itch but it made the skin dry and tight. I followed this with pure coconut oil. Between the two, my face has cleared completely in 6 days while my body is still slowly and nowhere near effectively being treated by steroids. I am also taking ACV and dandelion capsules for the liver, but if they were the major remedy I would have seen better results across my entire body. So for me the answer seems to be a combination of aloe vera gel and pure coconut oil. What a blessing! And I learned about it just from this site. Thank you all.