instruction: hello doctor I happened to breathe fumes from chemical exposure two days ago got tightness in chest sternum and a little shortness of breath when biking the next day and did fine after riding a bike I had a little phlegm but now have irritated trachea and still a little tightness in sternum it has been 48 hours I can take a deep breath should I be more concerned
output: hi I can understand your concern this kind of exposure can cause bronchitis it is the inflammation of airways this inflammation causes cough and bronchoconstriction which intern cause wheezing breathing difficulty etc all these events depend on many factors but the most important factors are amount of exposure duration of exposure smoking habit underlying lung conditions present or not so please let me know the answers to the above asked questions so that I can guide you better I will be happy to help you further wish you good health