Nasal Lavage FluidNasal LavageNasal MucosaNasal Provocation TestsRhinitisBronchoalveolar Lavage FluidNasal PolypsEosinophil Cationic ProteinRhinitis, Allergic, PerennialRhinitis, Allergic, SeasonalSinusitisNoseNose DiseasesTherapeutic IrrigationBronchoalveolar LavageDustNasal SeptumEosinophil Granule ProteinsElafinGastric LavageCommon ColdAdministration, IntranasalNasal CavityPeritoneal LavageAllergensNasal ObstructionInhalation ExposureWoodEosinophilsNasal BoneNasal DecongestantsHistamineAir Pollutants, OccupationalAir Pollution, IndoorSecretory Leukocyte Peptidase InhibitorRhinovirusSputumOccupational ExposureNasal SpraysAsthmaCross-Over StudiesReproducibility of ResultsRibonucleasesNose NeoplasmsLungInflammation Mediators