When will adult croup stop?

Adult croup. Croup is by definition hoarseness, stridor (the sound of air moving through an obstruction), and hoarseness. Generally croup is an illness of childhood.There is one fixed area in the airway called the subglottis. Kids get croup because this area is small and when is swells in reponse to inflammation/infection, the area becomes more narrow. If you have a persisent barky cough, see a physician.
See below. 2 weeks is the average for all the symptoms to resolve.