<s>[INST] I have psoriasis and I ve developed a serious itch all over my body, especially in the groin area. Way worse than I ve ever had. I m developing cracks on the skin of my penis and it itches like crazy. Problem is, ny otherwise perfectly healthy girlfriend has contracted a form of staph or mersa infection which i know is contagion. Im scratching my akin til it bleeds and my groin hurts and itches lime crazy [/INST] hello welcome to healthcare magic forum psoriasis is chronic condition and you should take medicine for it as prescribed by doctor you have generalized dry skin ,it may be related to psoriasis you must consult dermatologist as early as possible as it may be worsen apply good moisturizer cream over full body 4-5 times a day over penis chance of fungal or candidial infection is higher apply clotrimazole cream over it avoid sexual relation till it heal i hope i answered your question </s>