Hello,
From the symptoms since the rash has spread from the penis to the groins, it can be fungal infection. Most cases of fungal infections respond to over-the-counter products, which contain any of several basic ingredients: miconazole, tolnaftate, terbinafine,ketaconazole and clotrimazole.
Also keep the area dry, wear loose fitting clothes, and change undergarments at least twice a day.
I hope it helps. Take care and regards.
i used the jock itch spray and it does sometimes soothe the pain but it also burns when its first put on.. im still applying thespay and adding healing ointment to the injured skin below the headof the penis... and nothing haschanged