Orbital cellulitis is the most common acute complication of ethmoidal sinusitis. A study of 4 cases, presented to ENT OPD with orbital swelling since 3-5 days and ipsilateral nasal discharge. History, CT findings, vitals with ophthalmic evaluation were noted. All the patients received systemic antibiotics with topical decongestant nasal drops and topical eye ointment and drops. Complications of rhinosinusitis result from progression of acute or chronic infection beyond the paranasal sinuses. In children it is more likely that there will be no prior history of sinusitis, the complication often being the first presentation. Early administration of broad- spectrum IV antibiotics can reduce the risk of further life- threatening complications and even abate the need for surgery., {"references":["John C Watkinson, Scott brown's Otolaryngology head and neck surgery, Carl Philpott: Rhinosinusitis definations, classification and diagnosis vol 1 p1025","John C Watkinson, Scott brown's Otolaryngology head and neck surgery, Stephan Ball and Sean Carrie: Complications of Rhinosinusitis vol 1 p1113.","Dankbaar JW, van Bemmel AJ, Pameijer FA. Imaging findings of the orbital and intracranial complications of acute bacterial rhinosinusitis. (2015) Insights into imaging. 6 (5): 509-18.","Brook I . Microbiology and antimicrobial treatment of orbital and intracranial compications of sinusitis in children and their management. Int J Pediatr otolaryngol 2009: 73(9) 1183-6","Ferguson MP, McNab AA (1999) Current treatment and outcome in orbital cellulitis. Aust N Z J Ophthalmol 27:375–379","Erickson B, Lee W (2015) Orbital cellulitis as a complication of sinusitis. J Nurse Pract 7(1):38–44","Elshafei AMK, Sayed MF, Abdallah RMA (2017) Clinical profile and outcomes of management of orbital cellulitis in Upper Egypt. J Ophthalmic Inflamm Infect 7:8 13. Buchanan M, Muen W, Heinz P (20","McMullan B, Andresen D, Blyth C et al. Antibiotic duration and timing of the switch from intravenous to oral route for bacterial infections in children: systematic review and guidelines. Lancet Infectious Diseases, The, 2016-08-01, Volume 16, Issue 8, Pages e139-e152.","Nwaorgu OGB, Awobem FJ, Onakoya PA, Wabem AAA. Orbital cellulitis complicating sinusitis: a 15 year review. Niger J surg Res. 2004;6(1–2):14–16.","Chaudhry IA, Shamsi FA, Elzaridi E, Al-Rashid W, Al-Amri A, Al-Anezi F, et al. Outcome of treated orbital cellulitis in a tertiary eye care centre in the middle East. Ophthalmology. 2007;114(2):345–354. doi: 10.1016/j.ophtha.2006.07.059.","Todman MS, Enzer YR. Medical management versus surgical intervention of pediatric orbital cellulitis: the importance of subperiosteal abscess volume as a new criterion. Ophthalmic Plast Reconstr Surg. 2011;27(4):255-259.","I D Singh, Lt Col V G, S Gupta, Anubhav. Acute Orbital Cellulitis: A Case Series. Glob J Oto 2017; 3(3): 555614","Chandler JR, Langenbrunner DJ, Stevens ER. The pathogenesis of orbital complications in acute sinusitis. Laryngoscope. 1970;80(9):1414-1428.","WILLIAMSON-NOBLE, F A.: Disease of the orbit and Its Contents Secondary To Pathological Conditions Of The Nose And Paranasal Sinuses. Ann. Roy. Col. Surg. Eng, 15:46-64, July, 1954.","BATSON, O. V: Relationship of the Eye to Paranasal Sinuses. Arch. Ophthal, 16:322-328, Jan, 1936.","Pereira FJ, Velasco e Cruz AAV, Anselmo-Lima WT, Elias Júnior J. Computed tomographic patterns of orbital cellulitis due to sinusitis. Arq Bras Oftalmol 2006;69:513-8.","Rosenfeld RM, Piccirillo JF, Chandrasekhar SS, et al. Clinical practice guideline (update): adult sinusitis. Otolaryngol Head Neck Surg 2015;152:1-39.","John C Watkinson, Scott brown's Otolaryngology head and neck surgery ,Carl Philpott: Rhinosinusitis definations classification and diagnosis vol 1 p1025","Abou-Hamad W, Matar N, Elias M, Nasr M, Sarkis-Karam D, Hokayem N, et al. Bacterial flora in normal adult maxillary sinuses. American journal of rhinology & allergy. 2009;23(3):261–3. doi:10.2500/ajra.2009.23.3317.","DeMuri G, Wald ER. Acute bacterial sinusitis in children. Pediatrics in review / American Academy of Pediatrics. 2013;34(10):429–37. quiz 37. doi:10.1542/pir.34-10-429.","Wilson MT, Hamilos DL. The nasal and sinus microbiome in health and disease. Current allergy and asthma reports. 2014;14(12):485."]}