Bad skin reaction to all moisturisers and medicated creams

I've had psoriasis for about 10 years now, but it was very manageable until a year ago, when it spread from my scalp to everywhere on my body except my face, hands and feet.. My scalp psoriasis is controlled by Dovobet (calcipotriol) gel. I have a few spots here and there on my arms and about 80% of my lower legs are covered, although these are both controlled well by Dovonex (calcipotriol) ointment. Psoriasis in my groin and anus is controlled well by Trimovate cream. My biggest problem over the last year has been my torso. From my neck down to the middle of my bum, I have 100% psoriasis coverage on front, back and sides. When I say ‘100% coverage’, I mean that the psoriasis covers the whole of the area, rather than appearing in small plaques with healthy skin in between – so basically I do not have any healthy skin on my torso whatsoever. I started on methotrexate almost a year ago, but even doses of 20mg (maximum for my body weight) did not have any effect. I have just switched to ciclosporin (100mg). Whilst I’ve been waiting for these drugs to kick in, my consultant has prescribed many moisturisers and medicated creams for my torso, but I seem to have incredibly sensitive skin! The moisturisers/medicated creams sooth the skin for the first couple of days, but then my scales fall off, the skin turns bright red, and it quite literally doesn’t stop itching. It feels like my entire torso is being violently tickled/burned, and scratching only soothes it for a couple of seconds. It got so bad on some days last year that I had to take days off work. The moisturisers/medicated creams I’ve tried are as follows, but they all result in the same horrific reaction: Medicated creams - Dovobet (calcipotriol) - Curatoderm (tacalcitol) - Betnovate - Unguentum M - Xamiol (calcipotriol gel) Moisturisers - Diprobase - Aveeno - Doublebase - Balneum Plus cream - E45 cream - E45 Itch Remedy - Vaseline - Cetraben So for the past few months (after trying the aforementioned moisturisers/ointments) I have not actually been putting anything on my torso, aside from Balneum Plus bath oil in the shower (which doesn’t dry out the skin like normal soap, but isn’t all that helpful after I get out of the shower) and Eurax Itch Remedy Lotion as and when required, which soothes itching for a few hours (but has the rather unfortunate side effect of drying out the skin). Therefore, my torso skin is incredibly dry, flaky (my flat looks like a sand pit and there is a trail of flakes everywhere I’ve been) and worst of all it’s very, very itchy, sore and painful (although not to the extreme as when I used the creams listed above). I’ve tried to take antihistamines (Loratidine and certrizine hydrochloride) and hydroxyzine tablets to help with the itching, but they don’t seem to help. The psoriasis on my torso seems to be getting itchier and drier every day, whilst leaving me more and more desperate and hopeless. If anyone else has a sensitivity to all moisturisers/medicated treatments, I’d really appreciate if you could let me know how you cope with your dry, itchy and sore skin.