Patients should consult a physician when they experience symptoms such as nasal congestion, runny nose, headache or localised pain. The treatment of frontal sinusitis is similar to that of sinusitis. The principles of treatment are to eliminate the cause of the disease, to relieve nasal sinus drainage and ventilation obstruction; to control infection and to prevent complications. Non-surgical treatment is the mainstay and endoscopic sinus surgery can be considered when conservative treatment fails.