因天然而舒畅鼻冲洗应对过敏性鼻炎
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Awordaboutwaterquality关于水质：
IntheUnitedStates,lukewarmtapwaterfrommunicipalwatersystemsorintactwellsdeeperthan40feetisconsideredsafeforsalinesolutionpreparation.Ifthesecriteriaarenotmetorifwatersafetyisindoubt,distilledwaterortapwaterboiledandthencooledtoroomtemperatureisre
