Psoriasis Is an auto immune condition. Where in the immune cells of the body attack bodies own skin cells mistakenly PSORIASIS symptoms usually occur on the scalp elbows knees lower back & genitals. But they can appear anywhere It can also affect the finger nails Any form of topical lotion can only give temporary relief The main objective is to heal the immune system & the skin internally Causes : Stress, cold wear, infection like strep throat, friction / injuries to the skin Excessive alcohol & smoking.