A 50-year-old male who is under my treatment for one and half years, developed a skin lesions over thigh. To start with it was like weeping eczema and responds to steroid ointment, on stopping it flairs in form wet skin lesion.

What is this skin complication of U C or a drug reaction/eruption? He is at present on: Mesacol,sulphasalazine, imipramine + diazepam, folic acid, B Complex, Probiotic.