Yes, I have been suffering with psriosis for years and having recently gone into do light treatments at my dermotologists. I had to go in 3 times a week - and the cost to insurance was $70.00 per treatment! I even ask about purchasing a unit and they looked at me like I had two heads!! Changed dermotologists - and first visit NBC's light machine was mentioned. From that point on, I had one in about 2 weeks - and Medicare paid for 1/2 of it! It has been wonderful. My hands are currently CLEAR and at worst have had very few flare ups of psoriosis!!