<prompt> Post-herpetic neuralgia is seen after?1 weeks2 weeks3 weeks4 weeks  <response>: Post-herpetic neuralgia is neuropathic pain seen after 30 days4 weeks of onset of rash. Immunocompromised hosts are more prone to neurological complications like: Encephalitis Myelitis Cranial and peripheral nerve palsies Acute retinal necrosis. Management: 1. Wet compresses using burrows solution applied 4-5 times day are useful breaking vesicles and remove serum and crust. 2. Valacyclovir, Famcyclovir for 7-10 day 