Nocturnal asthma is a worsening of asthma at night. Asthma is a chronic illness that causes inflammation of the lung's airways. This makes it difficult to breathe and may cause wheezing, coughing, chest tightness, and shortness of breath.
Several factors may increase asthma symptoms at night:
- Allergens present in the bedroom, such as dust mites or pet dander
- Gastroesophageal reflux
- Cooler air in the house at night, which can trigger symptoms in the lung's sensitive, inflamed airways
- Sleep apnea, a sleep disorder that causes repeated, short instances where the person doesn't breathe
- The wearing off of asthma medications in the early morning hours
- Chronic sinus problems and/or post-nasal drip
Managing Nocturnal Asthma
To control asthma symptoms that become worse at night, identify and eliminate the underlying cause. For example:
- If your bedroom has dust mites, vacuum it frequently, using a HEPA-filter vacuum if possible.
- If you suffer from gastroesophageal reflux (GERD) or chronic sinus infections, talk with your doctor about treating these conditions.
- Work with your doctor to adjust your medication if it is wearing off in the middle of the night.
Source: National Heart, Lung & Blood Institute
Last updated : 9/22/2020