LO has never gotten a rash. He's had that red burn like bum sometimes but only his bum and with a bath and some air it goes away. Now it's more on the skin between his belly button and his weewee, like the triangle from a bikini. His bum looks a little red but no rash. This rash looks like the prickly heat. I noticed it earlier today and tonight after the bath I noticed more on his legs like the outline of the diaper but here's the kicker, it looks like it's spreading to his belly, chest and now on his cheeks! Not as bad as the diaper area, but still small red raised bumps. I typically use GroVia Magic Stick and in occasion I have used Burt's Bee's rash cream. What can it be and what can I do? DS doesn't seem uncomfortable or itchy at all.