Newbie :)

Hi everyone, I began suffering from psoriasis when I joined university three years ago. I am unsure about why it started, and there is no record of anyone in my family having it. After struggling with it for two years, and following a strict course using the steroid ointment, Diprosalic, I had light treatment. My skin went back to how it had been before the psoriasis started - it was amazing! Since last November, it has flared up, literally overnight, all over my body again. I tried using Dovobet and the diprosalic again, as directed by the doctor, but I have been on it for a while now. The skin on my inner thighs is beautifully smooth and clear, but my outer thigh skin and calf skin is completely covered in red, itchy, nasty patches, as are my feet, soles, back, chest, stomach and arms. I row for my college and generally do a lot of exercise however, i feel really embarrassed when the other girls that I row with see my skin. They really do not know how to respond and they stare a lot. I don't normally get embarrassed about it anymore, (especially not with my hands, as I cannot really stop people seeing the psoriasis on them), but I am feeling rather embarrassed about it lately. My parents also seem to get frustrated and angry at me when it flares up again, as though I have intentionally caused it. I'm not sure how to respond to this, as I have read and researched psoriasis so much to try and prevent it coming back. It's very difficult. I am being referred again for light treatment, however, the thought that this is the circular cycle of my fight with psoriasis for the rest of my life is really quite upsetting. I really do not know how to control it. I have tried sea salts and bathing, moisturising, de-stressing (as i can get easily stressed) and ointments like silkis and enstilar. One thing I have not tried is changing my diet, however, I do not generally eat much sugar or bad, carby food, nor do I drink alcohol very often at all or smoke. Any suggestions, or general offers of advice? Much thanks, Alice