My now 9yo DD was dxed with psoriasis when she was 4. She had it all around her eyes, eyelids, nape of her neck, behind the ears, and inverse in her groin area, with a few guttate spots on her torse. The doctors had been IDIOTS about the whole thing and the eye doctor I took her to recommended a derm who walked in, took one glance and said, "OH, it's psoriasis!" She's the first on either side of our families that we know of.
BTW, this was around October and *everyone* was asking if her eyes were "part of a Halloween costume". Stupid people. I wanted to punch them all in the nose. The worst was her groin area. I had been told for 3 years that it was just diaper rash and had switched to cloth dipes, which really helped, but as she got into undies, the elastic would rub right on it. Heebie Jeebie time! I wound up putting her in boys knit boxers and that helped.
We tried the first cream prescribed, but it didn't help, so in the meantime, I started doing some homework and found some herbs that were said to be effective. I pulled out my crockpot and started making salves. I had one for general use, and one I made for around the eyes/more sensitive areas. They worked really well, so the derm asked me to bring her samples. She was impressed, but said they'd never sell b/c it was green (from the olive oil/herbs used)

Thank goodness, I wasn't trying to market it, I guess! I did send some to an acquaintance who was so bad they had to move south and she liked it really well, esp on her ears.
I'm getting ready to make a new batch, so I will find the recipe and post it (and my suppliers) here, if anyone is interested.