Olive oil

I don't want to get way ahead of myself but I have been diagnosed with Psoriasis over a year ago.. I used Squaphane shampoo and diprosalic Scalp lotion which both works. however in the last couple of the flare up started again. I went the natural root and put extra virgin olive oil on the scalp and left it over night and washed it in the morning. it has been 3 days now and I haven't seen any flare up's I am thinking of repeating this process every two weeks.