artists involve include celine dion and wycleff sean. the ,, i've had asthma for 12 years. 6 years. i've had asthma forever. i never knew why my asthma symptoms kept coming back... ...kept coming back... ...or that i could help prevent them in the first place. the problem was that my controller medicine... ...was treating only 1 main cause of asthma symptoms. but there are 2. airway constriction. and inflammation. unlike most controllers, advair treats both main causes. advair treats both main causes. and that helps prevent symptoms in the first place. (announcer) advair contains salmeterol. salmeterol may increase the chance of asthma-related death. so advair is not for asthma that's well controlled on another controller medicine. advair will not replace fast-acting inhalers for sudden symptoms... ...and should not be taken more than twice a day. talk to your doctor about the risks and benefits of advair. if you take advair, see your doctor if your asthma does not improve or gets worse. if you're still having symptoms... ...ask your doctor how to help prevent them with advair. (ann