I havnt tried it but I believe it works because I know the Salt water from the ocean does I am making a post about what I have tried that has worked in this forum.

the dead sea shops is the best place to shop for dead sea product or psoriasis products

The deadsea is good but you must stay there at least 3 weeks, and in most cases the Psoriasis will return in about 5 months.

I do not advise it since by getting so much sunrays there is some damage to the skin. You will need to stay in the sun 6 hours a day.

Instead you can look for UVB unit or lamp to use at home or get these treatments in a clinic. In the USA it might be that they will pay you to buy a unit, your med insurance.

Dead Sea minerals known as a helpful for psoriasis and eczema cure. There are two lines of creams based on it with a good results.