Itch and flaky skin in genital area.

I have seborraheic dermatitis which has been diagnosed by a dermatologist earlier 2 years ago. Also, since 4 years, I have been suffering from a slightly wet flaky skin in my genital region which causes an itch sometimes. Also, when I rub my fingers over my scrotum/area near my thighs, skin wears off with it. I visited a dermatologist 2 months ago for the same. She recommended using Desowen lotion, which I used but with gaps on alternate days(due to my casual attitude). Now, I have discontinued it's use for the last 15 days. Since then the itch has increased, now whenever it happens, it's very discomforting. Also, the skin on the scrotum remains reddish in texture and I have curly pubic hair which are a little sharp along the length(diagnosed by the doctor who prescribed Desowen). Now from the last few days, the flaking has increased a few centimetres along my thighs. Please suggest a remedy for the same.