Hi!
I feel so sorry for you!
When I met my husband he had very bad psoriasis on the face and scalp. He also had what is called Hubners syndrome, that is when you get pso in a place where you have experienced trauma to the skin , in other words, scars.
In his case, a big area on the leg.
I was just out of beauty school and rubbing my hands to get a go to help him. he had been using steriods for over 20 years with some relief.
I first tried aromatherapie, Lavender mostly, and that helped a bit. But one night I putted on Aloe Vera cream, and hallelujah, it had goten better over night. Three nights later it was all gone and it has never come back!
Now he uses the same cream twice a year(!) on his face and scalp, and he has abselutely no symptoms!
Now I do business in my salon, mixing creams for clients with rashes and exzema and everyone is coming back for more!
Get yourself a really good quality AV cream AND a plant. Drink the juice too!
That´s my best advice!
Greetings from Finland and good luck!