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Postinfectious Cough: A Common Aftermath of Respiratory Infection
Following a respiratory infection, it’s not uncommon for individuals to experience a persistent cough. A recent article published in the Canadian Medical Association Journal (CMAJ) has brought attention to this issue, particularly in light of the surge in respiratory infections across Canada. This lingering cough, known as a postinfectious cough, can persist for weeks after the initial infection has cleared. Despite being a source of discomfort and concern, most cases of postinfectious cough are self-resolving and improve without the need for medication.
Dr. Kevin Liang, a family physician and clinical instructor, has stressed the importance of reassuring patients about the nature of postinfectious cough. This approach can encourage patience during recovery and help prevent unnecessary and costly prescriptions. For more information on postinfectious cough in adults, the CMAJ article provides a DOI for further reading.
Managing Long-Term Cough Symptoms
Major respiratory illnesses like COVID-19, RSV, and influenza often leave patients with a lingering cough that can last anywhere from 6-8 weeks, and in some cases, up to 100 days. Many individuals report coughing more at night, a symptom that may point to other underlying conditions such as asthma. While patience is key in these instances, there are some over-the-counter medicines available to help manage symptoms. Antihistamines, nasal sprays, and medicines like Mucinex can offer some relief.
For individuals who are concerned about their symptoms, virtual visits with healthcare providers like OSF OnCall Urgent Care are readily available for medical assessment and recommendations.
When to Seek Medical Attention
While a lingering cough following a respiratory infection is common, a cough that persists for more than three weeks should prompt a visit to the doctor. It’s also important to differentiate between a lingering cough and a chronic cough, which is defined as a cough that lasts longer than eight weeks. The latter could be indicative of underlying conditions such as asthma or acid reflux, and may require a different course of treatment.
Post-Viral Conditions in Children and Adolescents
The long-term effects of post-viral conditions, including postinfectious cough, are not limited to adults. These conditions can also impact children and adolescents. A systematic review comparing the symptoms, illness duration, and healthcare burden of post-viral conditions, including Long COVID, in children and adolescents, found that the post-COVID symptoms duration was similar to post-EBV and gastrointestinal virus syndromes. However, a smaller proportion of children developed chronic symptoms after COVID. This highlights the need for further research into the severity and duration of post-COVID symptoms compared to other post-infection syndromes, as well as the socioeconomic consequences for affected children and their families.
