I would advise you to use virgin coconut oil it has been found to be an excellent natural treatment for relieving psoriasis. A common recommendation is to take 2 tablespoons of virgin coconut oil each day. It can either be consumed directly from the spoon, or you can mix it into a fruit smoothie, sautee vegetables with it, or use it as a replacement for butter when eating pancakes. Another option is to apply virgin coconut oil topically onto the affected area 3 times per day.
Note : Use virgin coconut oil extracted from coconut milk i have been using Merit VCO extra virgin coconut oil