SinusitisMaxillary SinusitisSphenoid SinusitisEthmoid SinusitisFrontal SinusitisParanasal SinusesMaxillary SinusParanasal Sinus DiseasesEthmoid SinusOrbital DiseasesRhinitisTransilluminationEndoscopyBacteria, AerobicNasal PolypsCellulitisAcute DiseaseMycosesTomography Scanners, X-Ray ComputedNose DiseasesOtorhinolaryngologic Surgical ProceduresOtitisNasal MucosaAmoxicillin-Potassium Clavulanate CombinationChronic DiseaseFrontal SinusRespiratory Tract InfectionsTurbinatesTomography, X-Ray ComputedMucoceleExophthalmosAnti-Bacterial AgentsMucormycosisSphenoid SinusAspergillosisLaryngitisCiliary Motility DisordersOroantral FistulaCavernous Sinus ThrombosisBacterial InfectionsCommon ColdTreatment OutcomeNasal DecongestantsSymptom AssessmentEthmoid BonePorphyromonasOtitis MediaRhinitis, Allergic, PerennialDepressionSchizophyllumBrain AbscessEpidural AbscessNasal ObstructionStomatognathic DiseasesTrichosporonosisEmpyema, SubduralParanasal Sinus NeoplasmsTonsillitisSeverity of Illness IndexBacteria, AnaerobicRhizopusKartagener SyndromeRetrospective StudiesAsthmaNasal SeptumProspective StudiesAmoxicillinCefuroximePolypsIntubation, GastrointestinalMoraxella (Branhamella) catarrhalisQuestionnairesCyclacillin