Welcome to HCM,
you are having Acute bronchitis
and which is commonly seen after viral infection and it makes airways hyper responsive and accompanied inflammation and mucus causes narrowing of airways which is similar to asthma
but this is short lasting and once it clears off you will have normal lung function.
If you are comfortable with inhaler then it is good as it gives minimum possible dose of steroids
and can be taken in case of emergency and side effects are nil or negligible.
In very few patients this type of reactive bronchitis is some time persistent.
I hope you will not be required to take it in long run.
Please be aware that bronchitis is mainly due to smoking
so please do not smoke .