Question normal

Thanks for this nice discussion. One major issue in my practice, is the adherence of patients (especially kids) to the full course of Abx regimen. Clear example is the bacterial tonsillitis and treatment with oral amoxicillin or penicillin. Rarely I saw patient who completed the full course. I am reluctant to give IM penicillin fearing of anaphylactic shock.

My question after that long introduction ;) Can skin test for penicillin give false negative results?