Do not use too hot or too cold water. Do not use pure water to wash nose which may damage nasal membrane or cause choke. Do not use table salt w/ iodine to make wash soln. Do not use pure salt soln as it may cause nasal dryness or damage nasal membrane. Do not sniff, swallow, laugh or talk while the liqd is flowing through the nasal passage. Do not rinse nose if the patient's nasal passage is completely blocked or if the patient has an ear infection. Do not share the nasal irrigator w/ others. Patient w/ nose bleeding. Monitor use in childn.