What Are The Symptoms Of Chronic Eczema?

                                   I have had postivie and negative results for acute intermittent porphyria. Have had eczema for a year now. I had a very bad flair up after sun exposure . My doctor thinks that this might be porphyria related. I have been on oral steroids total three courses. Three different steroid creams. Can this chronic ezcema be porphyria? If it is can a dermatologist help me?