I guess you are looking for something beyond the capabilities of an online doctor
. An online doctor can only be able to guide to towards the right treatment. And as I see you are under treatment for an infective respiratory infection. If the symptoms persist then it's just the matter of time or the antibiotic isn't effective.
I would be worried if the antibiotic is ineffectve as you are on steroid
In this circumstance it would be worthwhile to report back to your doctor and get this clarified.