Document Type: Review Article
Shiraz University of Medical Sciences
Introduction:Coughs lasting more than 3 weeks after airway infections are likely regarded as post-infectious coughs. A normal chest radiography unfavors possibility of pulmonary infection. These coughs are self-limited. This study reviews conducted studies in order to identify and define prevalence, pathogenesis, and cure of post-infectious constant coughs. Methodology: The necessary data and guidelines are gained from English articles in PubMed website. Post-infectious and cough are searched. Results: Post-infectious cough pathogeneses are not known; nevertheless, inflammation, epithelial damages of upper and lower airways, increased mucus secretion, and an increased reactivity of airways can cause these coughs. Despite self-limitedness of these coughs, dextromethorphan, antihistamines, ipratropium bromide, and decongestant are usually prescribed for cure of these coughs. Conversely, antibiotics play no significant role in this regard. These coughs constitutessmaller percentage of chronic coughs and are primarily classified in subacute coughs.Discussion:Pathogeneses of post-infectious coughs are not known. Experiential treatments are suggested despite self-limitedness of post-infectious coughs. Antibiotics play no significant role in this regard. Further studies should cover sub-acute and chronic properties of these coughs as well as their prevalence in different age groups and their determinants.