it can help. i also have osa and use saline nasal spray just before bed and try to clear mucous from my nasal airway. my cpap only covers my nose so i need a very clear and patent nasal airway in order to get sufficient air.
does clearing nasal passage before sleep help with osa. if an osa sufferer uses nasal spray and blows his/her nose before bed will that curb the apnea?