My granddaughter is allergic top mosquito bites, but she got a bit in the yard about 40 min ago that s more reaction than usual. I m wondering if something else bit her? There s a raised white round-sh patch on her elbow a bit smaller than a dime. Slight redness surrounds it, like inflammation, but not a definitive ring of red. There s no sign of a head of the bite, or any spot inside the white. Should I be concerned about this big reaction. It s unusually large. Could have been a mosquito, but could have been and ant, spider?