A bit of help and support!

Hi, I am new to this forum! So I developed psoriasis widespread over my body this was after chemotherapy for Acute Lymphoblastic Leukaemia. I have been on Methotrexate now for 6-7 years and currently taking 30mg weekly which has just about been controlling it. Unfortunately my liver function has worsened and so it is now on hold. So... one I am worried about my psoriasis flaring up as it really knocks my confidence! And two I am worried about treatment options as they were so limited due to my past medical history. Does anyone have any ideas suggestions? Thanks Siwan