Around 808.000 cases people worldwide are infected with pneumonia. Pneumonia is a lung infection that can lead to impaired gas exchange due to the accumulation of secretions in the respiratory tract. One non-pharmacological approach to manage ineffective airway clearance in pneumonia patients is the use of eucalyptus oil aromatherapy. This study aimed to describe nursing care for a patient with ineffective airway clearance due to pneumonia through the implementation of eucalyptus oil aromatherapy. This research utilized a case study method involving one elderly patient with pneumonia hospitalized in the Lavender ward of RSUD dr. R. Goeteng Taroenadibrata Purbalingga. The patient, Mrs. S, experienced productive cough, dyspnea, chest pain, and a respiratory rate of 28 breaths per minute. The initial nursing diagnosis was ineffective airway clearance related to retained secretions. After three days of nursing intervention, which included effective coughing and eucalyptus oil steam inhalation for 10–15 minutes twice daily, the patient showed improvement. The final outcomes included more effective coughing, reduced sputum production, and decreased dyspnea. It can be concluded that eucalyptus oil aromatherapy helps facilitate sputum removal in patients with ineffective airway clearance.