There is a well known link between asthma and sinusitis. Several theories as to why these two diseases are related have been put forth. These include:
About half of all children and adolescents with asthma have at sometime had radiographic evidence or symptoms of sinusitis. Recent studies have also shown that asthma severity at times may be linked with the severity of sinus disease. Most studies indicate that asthmatic airway irritability of the lungs may improve with sinusitis treatment.
The precise relationship between asthma and sinusitis is still unknown. However studies can explain the improvement in asthma with improvement in sinusitis by several possible mechanisms. These include:
If you have chronic sinus disease, you should be carefully evaluated for concurrent asthma and vice versa. Specific therapies for sinusitis may have a positive impact on asthma care.