<s>[INST] i am 24 now,..when i was 22, i had scaling patches in my groin that extends to some portions of my butt. its like a fungal infection . i had it treated with otc anti fungal drugs. Since then i had it on and off so as my med treatment. In two years time, it wet off for like couple of months, now i have this again in my penis and balls,I also had scaling patches at my head which i think is infected thru scrathing. I am treating it with nizoral shampoo but still it doesnt work,..its not that itchy but since its scaling, im trying to peel it off causing it to bleed. is this a psoriasis or a yeast infection,..what else remedy could i use to get rid of this. [/INST] Hi Albert, From the description provided, it could be fungal infection or seborrhea dermatitis or psoriasis. As the treatment of these three conditions are entirely different, so it would be difficult to advice a treatment in this forum. Dermatology is a visual field, diagnosis and treatment can only be suggested once the affected area is properly examined. So either send photographs of the involved area or consult a dermatologist nearby. Take care. </s>