 It has been speculated that severe nasal inflammation which involves the presence of nasal polyps would constantly stimulate the bone marrow, causing on the one hand increased production of eosinophils and the other an increase in adhesiveness, and thus, an important eosinophilic bronchial inflammation. This is in line with a usual clinical observation according to which patients with asthma and sinonasal polyposis, often suffer more severe asthma; and severe sinus inflammation is one of the aggravating factors recognized in severe uncontrolled asthma. 