Common ColdEchinaceaRhinovirusCold TemperatureNasal DecongestantsNasal Lavage FluidNasal SpraysPicornaviridae InfectionsMulti-Ingredient Cold, Flu, and Allergy MedicationsAntitussive AgentsNasopharyngitisCoronavirus 229E, HumanGluconatesSneezingNasal LavageExpectorantsRespiratory Tract InfectionsPhytotherapyNonprescription DrugsZinc AcetateVirus UncoatingCoronavirus InfectionsCoronaviridae InfectionsHistamine H1 AntagonistsNasal MucosaHumidityCoronavirusCoronavirus OC43, HumanSulfinic AcidsZinc CompoundsPlant PreparationsCarrageenanMucusAscorbic AcidPharyngitis