Neuralgia, PostherpeticTrigeminal NeuralgiaHerpes ZosterNeuralgiaHerpes Zoster VaccineHerpes Zoster OphthalmicusAnalgesicsHerpesvirus 3, HumanAmitriptylineAcyclovirAntidepressive Agents, TricyclicCyclohexanecarboxylic AcidsPulsed Radiofrequency TreatmentSensory System AgentsPain, IntractablePain MeasurementAntiviral AgentsChickenpox VaccineAminesPainFacial NeuralgiaLidocaineTrigeminal NerveGlossopharyngeal Nerve DiseasesPudendal NeuralgiaAnticonvulsantsAnesthetics, LocalNerve Compression SyndromesRhizotomygamma-Aminobutyric AcidAntidepressive AgentsMicrovascular Decompression SurgeryDouble-Blind MethodAutonomic Nerve Block