Related factors.(6) Logistic regression analysis(6) Postherpetic neuralgia(6) Naple(3) Population-based study.(3) psoriasis(3) herpes zoster(3) university(3) Epidemiology(3) unit(3) Nationwide database(3) experience(3) Cancer(3) COVID-19(2) imiquimod(1) interferons(1) Cutaneous manifestations(1) Topical imiquimod(1) Toll-like receptors(1) SARS-CoV-2.(1)