<prompt> Most dangerous type of diptheria -FacialLaryngealNasalCutaneous  <response>: Ans. is b i.e., Laryngealo Clinically diphtheria is divided into :-1 Facial tonsillo-pharyngeal diphtheria It is the commonest type with incubation period of 2-5 days. There is thick adherent pseudomembrane grey or white on one or both tonsils or adjacent pharynx. Dislodging of membrane is likely to cause bleeding. A small perecentage of patient present with massive swelling of tonsils and uvula with cervical lymphadenopathy bull neck and severe toxemia, called malignant diphtheria.2 Laryngeal diphtheria It is the most severe form of diphtheria.3 Nasal diphtheria It is the mildest form.4 Cutaneous diphtheria It is caused by nontoxigenic strain and patient presents with punched out ulcer.5 Other forms These are conjunctival, otitic, genital vulval, vaginal or prepucial, and gastrointestinal. 