We've had the Pool Frog system for about 4 days. My 6 year-old started developing what looks like wide-spread heat rash on her torso within the first day of swimming. There are no bumps and it doesn't itch. I'm wondering if it is a reaction to some of the minerals? She's been swimming in our pool since her birth and has never had any problems until now.

I realize this isn't a medical site, just trying to see if there's any helpful info.

Thanks!