<prompt> Tzanck smear is useful for the diagnosis ofEryhrasmaHerpes Virus infectionSuperficial Pseudomonas infectionPntcmpniic TR  <response>: B Herpes Virus infection TZANCK SMEAR is a rapid, fairly sensitive and inexpensive diagnostic method. Smears are prepared from the lesions, preferably from the base of vesicles and stained with 1 aqueous solution of toludene bleu 0 for 15 seconds. Multinucleated giant cells with faceted nuclei and homogenously stained ground glass chromatin Tzanck cells constitute a positive smear. Intranuclear type A inclusion bodies may be seen in Giemsa stained smears. Acantholytic cells present in Pemphigus vulgaris, Senear-Usher syndrome, Pemphigus foliaceous Pemphigus vegetans 