Postherpetic neuralgia(5) neuropathic pain(4) Gabapentin(2) Gastroretentive(2) regional homogeneity (ReHo)(1) Ozone injection(1) Quality of life(1) Safety(1) fulranumab(1) chronic pain(1) herpes zoster(1) SF-36(1) elderly(1) NaV1.7(1) fractional aptitude of low-frequency fluctuation (fALFF)(1) postherpetic nuralgia(1) Patient-reported outcomes(1) diabetic peripheral neuropathy(1) posttraumatic neuropathy(1) trigeminal neuralgia(1) pulsed radiofrequency(1) HZ pain(1) sustained-release formulation(1) antinerve growth factor(1) R1150W(1) resting-state fMRI (rs-fMRI)(1) EQ-5D(1) pregabalin(1) analgesic(1)