A 17-year-old girl presented to the physician with an increasingly painful left ear swelling since the past five days. The patient had scratched the pinna due to itchiness, but denied having any recent injury or ear-piercing procedure (Image attached). What is your likely Diagnosis?

*This image-based patient case is from Docplexus Editorial Team for educative purpose only. Source: Image-Based Case Studies in ENT and Head & Neck Surgery