My prescription ran out of my ointment and the dermatologist wouldn't refill it without an appointment. I didn't feel like dealing wiht it. Psoriasis is just so difficult to deal with, it seems like you go 2 steps forward and 1 step backwards all the time and pay out so much money. 2 years ago I was doing the light treatment thing with some slow results but at 100 degrees out side I just didn't want to do that! So I heard on TV this medicine called psoriasin so I went to Walgreens and bought it. It's just plain coal tar ointment! And it's working. I can't believe it. I don't know how long it will take to work or whether it will have to be the rest of my life but it sure is better than what I was paying for my Rx. It does stink a bit.