 Time to no progression of cellulitis Time to discharge: number of days including fractions of days from the time of arrival in ED to the time the patient no longer needs hospital-based interventionscare, whether in hospital or at home Readmission rate Representation to ED Length of stay in ED Duration of IV antibiotics Rates of IV cannula needing at least one resiting Complications of cellulitis: development of abscess requiring drainage after starting IV antibiotics, bacteraemia Adverse events 