A grandmother and two teenagers survived an apparent murder-suicide that left a husband and wife dead inside a home in Aldie, Va., the Loundoun County Sheriff's Office said.
6 doctors agreed: Croup: Croup is usually self-limiting, lasting 5-7 days, but as with any other respiratory infections, cough is usually the last symptom to go away. Postinfectious cough can last up to several weeks, and it can trigger brochospasm especially if the child has asthma.
They found the average duration of a cough among the people in the studies was 17.8 days. Then they surveyed almost 500 adults to find out if their expectations for how long a cough should last matched up with clinical data.