CRP and abscess: The factors associated with failed medical management after multivariable analyses (Table 2) included presence of fever (temperature of 37.5°C or higher) on admission (1.72 odds of failed management if febrile on admission), larger mean TOA diameter (2% higher odds for every 1‐mm increase in abscess size) and higher CRP (1% higher odds for every unit increase in CRP) (1.00 [1.00–1.01]).