justcontemplateit

You mentioned that you struggle being out in the sun. Have you looked into red or infrared therapy? There seems to be some promise there in treating psoriasis, and they don't involve UVB radiation. Red light particularly is very easy on your skin.

Also I saw in the comments that you'd tried a dietary approach. Personally I need to cut out all nightshades as well as the typical gluten/dairy/sugar combination. I generally need to follow strict AIP for about 3 weeks to be free of most symptoms (inc cutting grains and legumes) - obviously you'll know what works for you and what doesn't though.

Supplement wise, lactoferrin has been shown to have a regulatory effect on the immune system and help inflammation / autoimmunity. It's not cheap but it's the best supplement i've found. I know some people swear by colostrum, I haven't got much experience with it though and don't have a study to hand.

Hope things improve for you, glad that you're able to find so much happiness in spite of your circumstances!