<prompt> A 56-year-old man has painful weeping rashes over the upper eyelid and forehead for the last 2 days along with ipsilateral acute punctuate keratopathy. About a year back, he had chemotherapy for Non-Hodgkins lymphoma. There is no other abnormality. Which of the following is the most likely diagnosis?ImpetigoSystemic Lupus ErythematosusHerpes ZosterPyoderma gangrenosum  <response>: It is a case of infection with Herpes Zoster.The point which leaves no doubt about the diagnosis of Herpes zosterPainful unilateral rashes over upper eyelid and foreheadHO chemotherapy for Non-hodgkins lymphomaIpsilateral acute punctate keratopathyHerpes infections are characterized by pain and its occurrence in an immunocompromised patient.Patients with Hodgkins disease and Non-Hodgkins lymphoma are at great risk of developing progressive herpes zoster. 