copd is multifactorial
and requires removal of causative substance be it smoking
a detailed workup with pft dlco, abg
, 6 minute walk test, expiratory hrct thorax
testing is required.
Following the appropriate dose of inhaler is prescribed currently you are using a dry powder inhaler
following these tests if its worsened or symptoms do not approve an ics inhaler may be added or you maybe started on mdis.
Kindly follow up with your chest physician