How long does wheezing from bronchitis last?

This depends upon the severity of the bronchial infection causing the bronchospasm. I've had to treat severe asthmatic bronchitis in the hospital for an average of 7-10 days. Treatment consisted of appropriate antibiotic, inhalation therapy with bronchodilators & corticosteroids as well as strong doses of systemic corticosteroids. However, most cases can be treated as an outpatient.