I developed this type of psoriasis after a series of vaccines in 2017. I controlled a lot of symptoms with diet and supplements. I recommend reading Healing Psoriasis by John Pagano (you can find Kindle version on Amazon). I purchased the products suggested in the book at Baar.com. It was a lifesaver, but the bottoms of my feet would not clear. A year ago, I searched blogs, etc. again for an answer to help because my feet would continue to split and continuously sore to the point I could not walk. Someone on a blog suggested Lion's Mane mushrooms. I started taking Lion's Mane mushroom pills from Real Mushroom and Host Defense Mushrooms. I have branched out taking many forms of mushrooms both pill form and liquid. My feet started clearing up--to this day I no longer have eruptions and all the scaly areas are clearing up. My goal is to be able to wear sandals again this summer. Also, I am able to walk long distances.