Antibiotics are the standard treatments for bacterial sinusitis. Depending on the type of antibiotic, they are usually taken for 3 to 28 days. Because the sinuses are deep-seated in the bones and blood supply is limited, longer treatments may be prescribed for people with severe cases.
Over-the-counter medications can also help provide some relief. These include nasal decongestant sprays, antihistamines, and saline rinses.