Do you think about sinusitis, inflammation of sinuses?

A sinus infection can substantially contribute to the frequency and severity of asthma attacks. When an asthma sufferer have sinus infection this patient will breathe with their mouth open, a practice that precipitates an asthma attack.
Asthma and sinusitis can be provoke from polluted air.
Also, allergies, outdoor allergens and indoor allergens (pet allergens, mold) can trigger, both, sinusitis and asthma.