I have chronic sinus infections & mild asthma. Recently I have occasional blood when I rinse my mouth. No cough. Not dental. Throat looks fine. Worry?

Gingivitis? You are on lots of airway maintenance drugs that can alter the ecology of your mouth. The Advair is a steroid that can also cause a shift in the bugs. Probably breathing through you mouth most of the day and night. This can dry out your gums and over react to the bacteria causing gingivitis (bleeding gums) See you dentist for treatment and suggested care.