First time i've heard of aspirin having bad effect on asthma. I have to take it once a day for angina, and don't, and have never, seen a problem there in relation to asthma. In relation to ulcer, yes defiitely, a prob with me as I have an ulcered (barrett's) osophegus, but take med to counteract asprin there. But i'd be reluctant to tell anyone not to take aspirin because of asthma - aspirin is such a great drug for so many disorders, as they keep finding out.
Tom