Jim
I don't have psoriasis on my scalp. However I do have it wide spread on my arms and legs. I to have not had much luck with doctor purscribed medicines. I do now take 3000 mg of Evening Primrose Oil daily. That is 1000 mg gelcaps three times daily. It does not completly clear my condition, but does improve it greatly. Also I discovered completly by accident that while I went sailing with some friends one week my psoriasis cleared completly! It is a combination of sun and sea water that did it. And while I don't take enough time to take in this wonderful healing activity of sun and sea. At least I do know that my condition is controled by this as I see rapid improvments when spending even one weekend in that enviroment. Assuming that psoriasis of the scalp is the same as my psoriasis on my body these might provide you with some relief. I hope so. Good Luck....Jim