<prompt> All the following features are associated with Chancroid except-Painful ulcerPainless lymphadenopathySchool of fish appearance on stainingAzithromycin is useful in treatment  <response>: Ans is b i.e. Painless lymphadenopathy Chancroid is associated with painful suppurative inguinal lymphadenopathy.Chancroid soft chancresoft sore Chancroid is an STD caused by H.ducreyi, a gram negative cocobacilli. Incubation period of chancroid is 1-7 days. Clinically it is characterized by: -i Multiple ulcersii Non-indurated or soft indurationiii Painful Tenderiv Bleed easilyv Undermined, sloughed erythematous edgesvi Painful suppurative inguinal lymphadenopathyDiagnosis Treatment Grams staining of swab from the lesion may reveal a predominance of characteristic gramnegative coccobacilli, arranged in parallel chains giving a School offish or rail road track appearance. An accurate diagnosis relies on cultures of H.ducreyi from the lesion. Azithromycin is the DOC for treatment. Ceftriaxoney Ciprofloxacin erythromycin are alternatives. 