My 1yr old son has red splotches, irrirated looking, only on his scrotum. A few bumps have appeared as well on the tip of his penis and around the scrotum but the rash seems to be localized to his scrotum, and now part of his foreskin. Could this be fungal? It doesn t seem like standard diaper rash. Also, if fungal, is it safe to apply antifungal on his penis / tip of penis? Thanks.