Oslo Airport (OSL) Oslo Airport (OSL) One of three airports serving the Oslo region, Oslo Airport (OSL) is the second-busiest airport in Scandinavia and the 17th busiest in Europe. It serves as a hub for Air Norway, Norwegian Air Shuttle, Scandinavian Airlines and WiderÃ¸e.
Sinus infection (sinusitis) is caused by allergies, infection, and chemicals or other irritants of sinuses. Signs and symptoms are headache, fever, and facial tenderness, pressure, or pain. Treatments of sinus infections are generally with antibiotics and at times, home remedies.
1 Acute sinusitis is when symptoms are present for 4 weeks or less. 2  It is caused by bacteria growing in the sinuses. 3  Chronic sinusitis is when swelling and inflammation of the sinuses are present for longer than 3 months. 4  It may be caused by bacteria or a fungus.