Don't quit smoking..Smoking cures asthma..Smoking burns the pathogens and pollens and other things that causes Asthma. If you quit smoking your Asthma will get worse. Don't believe me ? Try it. I cured my asthma 3 years ago by smoking one pack of marlboro red a day. Now since its cured I only smoke 5 a day. I don't really like smoking and I workout but sure don't want any asthma coming back which is why I smoke the 5 cigarettes a day to keep my system in peak