So in the 9 hours Jack and I were there (alone for most of it) the situation progressed from yeast infection rash to systemic fungal infection (yeast that had spread) to being told we would be admitted for a minimum of three days for IV treatments while his blood is cultured to treat the problem, to a discussion of how he could have contracted said systemic infection (read - congenital immune deficiency syndrome) to finally being released by the on-call pediatrician from our practice (who thankfully stopped the nonsense.) We made it home around 3AM.
A follow up appointment the next morning with said on-call pediatrician revealed what Jack had was a virus that manifested itself in a rash - a second follow up with our own ped. yesterday confirmed.
So the diagnosis of a virus would explain why I had a fever of 101 on Sunday night, and why James woke up with a fever and vomiting last night.
Aren't viruses fun???