If the pool you went to was kept clean, then I don't think you have to worry about diseases. Chlorinated water usually takes care of that, but there are a few strains that might get through. Its doubtful, though. It might get infected, though, because chlorine, PH levelers and whatever other chemicals in the pool might have irritated it.
Hopefully nothing happens, and you are good to go, but call her just in case. I personally would have waited at least a week to go swimming, just so it would heal over some.
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