Of course we can not diagnose you, but an abscess in the tooth can persist despite antibiotics.
Sometimes, even if the tooth is pulled, infection can remain.
I would have this possibility addressed.
The ER is not the place to get a complex diagnosis and you should be working with an internal medicine doctor.
A high red cell count must be interpreted along with hemoglobin.
Elevations can mean:
These should all be considered.
In addition, a CT of the jaw can be done: any remaining infection needs aspiration for culture.
Resistant infection is possible.
I also suggest an echo cardiogram to look for heart valve infection.
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OK, so that is an initial answer….
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