Scrotum problem and treatment

Hi- a few weeks ago my scrotum became a lot tighter, meaning they no longer sag basically and my testicles are always held next to the body now. The scrotum texture became red and rough, and sometimes it itches, but not often. I am certain it is not genital eczema or genital psoriasis, and it doesn't affect anywhere else on the body at all, just the scrotum. I was wondering if it therefore a fungal infection, or if anything else can cause this. If it is fungal, do I need some sort of cream or should I use a spray? Thanks!