CoughWhooping CoughAntitussive AgentsCapsaicinCitric AcidCodeineReflexRespiratory SoundsExpectorantsBronchitisChronic DiseaseAsthmaBordetella pertussisNasal DecongestantsRespiratory Tract DiseasesCommon ColdGuaifenesinRespiration DisordersRespiratory Tract InfectionsSputumBronchial Provocation TestsAdministration, InhalationGastroesophageal Reflux