CapsaicinSkin CreamIce CreamPainPain MeasurementPain ManagementPain, PostoperativeOintmentsPain, IntractableChronic PainSensory System AgentsAdministration, TopicalPain ThresholdAnalgesicsLow Back PainBack PainAnesthetics, LocalAnalgesics, OpioidTRPV Cation ChannelsAnalgesiaFacial PainAbdominal PainNeck PainLabor PainTreatment OutcomeAnalgesia, ObstetricalPelvic PainNerve BlockAcute PainDouble-Blind MethodBupivacaineAnalgesia, EpiduralNociceptorsRelief WorkPain PerceptionNeuralgiaLidocaineMorphineTrigeminal NeuralgiaPain, ReferredVaginal Creams, Foams, and JelliesAnalgesics, Non-NarcoticShoulder PainAnalgesia, Patient-ControlledHyperalgesiaInjections, EpiduralEmollientsNeurons, AfferentCeliac PlexusTramadolChronic DiseaseInjections, Intra-ArticularZygapophyseal JointSubstance PAdministration, CutaneousCalcitonin Gene-Related PeptideAcupuncture AnalgesiaRadiculopathyCosmeticsReceptors, DrugInjections, SpinalHydromorphoneFentanylTranscutaneous Electric Nerve StimulationPalliative CareAnesthesia, LocalMeperidineTime FactorsMusculoskeletal PainArthralgiaDermatologic AgentsCoughProspective StudiesAnti-Inflammatory Agents, Non-SteroidalElectric Stimulation TherapyDose-Response Relationship, DrugVertebroplastyCausalgiaComplex Regional Pain SyndromesParesthesiaIrritantsOpiumNociceptive PainRats, Sprague-DawleyAminoquinolinesAntipruriticsGanglia, SpinalFollow-Up StudiesDiclofenacFractures, CompressionCodeineRhizotomyDermatitis, SeborrheicNerve Fibers, UnmyelinatedAnesthesia, EpiduralKetorolacAcetaminophenFailed Back Surgery SyndromeRange of Motion, ArticularAnesthesia, Caudal