Introduction: Temporal odontogenic cellulitis is a rare condition, typically secondary to dental infections, dental extractions, or dental trauma. Case Report: A 41-year-old patient with no significant medical history was referred to the emergency department of the maxillofacial surgery service for a painful, fluctuating, soft temporo-jugal swelling with trismus, following a dental abscess associated with a decayed tooth (48). The treatment, guided by imaging, included surgical drainage through a transoral approach, compressive bandaging, and a multi-antibiotic regimen for several days. Discussion: This case report highlights the insidious progression of this rare and often overlooked condition. Diagnosis is based on a detailed maxillofacial examination, a CT scan, and/or an MRI to assess the extent of the lesions. Early intervention is crucial, as the condition can threaten life. Management involves surgical drainage of the collection and appropriate antibiotic therapy.