![Harvard Health on X: "Decongestant side effects: Using decongestant nasal sprays for more than three to four days can cause rebound congestion once the spray wears off. https://t.co/xWBHOAnJFI" / X Harvard Health on X: "Decongestant side effects: Using decongestant nasal sprays for more than three to four days can cause rebound congestion once the spray wears off. https://t.co/xWBHOAnJFI" / X](https://pbs.twimg.com/media/F63_Y59WAAECoAO.jpg:large)
Harvard Health on X: "Decongestant side effects: Using decongestant nasal sprays for more than three to four days can cause rebound congestion once the spray wears off. https://t.co/xWBHOAnJFI" / X
Rebound Congestion: How Long Does It Last? (& 5 More Questions About It, Answered) | Houston Methodist On Health
![Avoid Rebound Congestion from Your Nose Spray This Allergy Season - Mantachie Rural Health Care, Inc. Avoid Rebound Congestion from Your Nose Spray This Allergy Season - Mantachie Rural Health Care, Inc.](https://mantachieclinic.org/wp-content/uploads/2020/03/Mantachie-blog-rebound-congestion.png)