Croup usually goes away in 3 to 7 days upon infection. Most symptoms will resolve by 1 to 2 days after manifestation. The outlook for croup is good with prompt treatment of symptoms. For milder cases, prognosis is good even if absence of treatment. For more severe cases, prompt treatment is necessary to prevent airway obstruction that can lead to life-threatening respiratory distress, (severe difficulty breathing), and respiratory failure.
What to expect if I have Croup  (Outlook/Prognosis)?
Croup usually goes away in 3 to 7 days upon infection. Most symptoms will resolve by 1 to 2 days after manifestation. The outlook for croup is good with prompt treatment of symptoms. For milder cases, prognosis is good even if absence of treatment. For more severe cases, prompt treatment is necessary to prevent airway obstruction that can lead to life-threatening respiratory distress, (severe difficulty breathing), and respiratory failure.