Background: Subgaleal abscess (SGA) is a purulent infection under the galea aponeurotic of the scalp. Also, SGA is a rare extracranial complication of chronic suppurative otitis media (CSOM). Purpose: Reporting management of SGA due to CSOM. Case description: A 6-year-old boy with right ear CSOM was found to have SGA. A swelling was found behind the right ear, right side of the head, and eyes. There was a history of right ear discharge. The management was conservative therapy by intravenous antibiotics after complete aspiration of abscess followed by canal wall down (CWD) mastoidectomy after 1 week. Method: An evidence-based literature search regarding the management of SGA due to CSOM using the keywords “subgaleal abscess” “Pott's puffy tumor,” “chronic otitis media,” “mastoiditis,” and “management” was conducted on SAGE, Science Direct, Google Scholar, and Semantic Scholar. Further selection is based on inclusion and exclusion criteria. Results: Two journals obtained are case reports. Management based on clinical and radiological findings, incision drainage was performed, and administered intravenous antibiotics followed by mastoidectomy showed improvement. Conclusion: Subgaleal abscess as a complication of CSOM was treated by intravenous antibiotics after complete aspiration of abscess and eradication primary source of infection with CWD mastoidectomy showed clinical improvement.