 STUDY METHODOLOGY ED clinicians senior doctors, junior doctors or nurse practitioners will identify patients with moderatesevere cellulitis presenting to RCH ED, at the point of triage or during clinical assessment. The consent will be for randomization, data collection and follow up which is not part of routine practice. Randomisation to the location of treatment is the essential difference from normal clinical practice. Where parents do not give consent, the ED clinician will make the decision on where the patient should be treated. 