Medicines may be needed when symptoms of sinusitis are severe or do not improve. The goals of treatment with medicine are to: Treat the infection, which is usually caused by bacteria if your symptoms have lasted more than 7 to 10 days. Relieve pressure and pain caused by poor sinus drainage.
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NITROUS OXIDE page 2 of 6. This Fact Sheet is a summary source of information of all. potential and most severe health hazards that may result from. exposure. Duration of exposure, concentration of the substance. and other factors will affect your susceptibility to any of the. potential effects described below.