Hi.
Thanks for your query and an elucidate history.
Noted your history of fever, green expectoration, too much of a productive
cough, antibiotic treatment and now the chest pain which is making coughing difficult.
My thoughts:
It all started as a
viral fever and you got secondary infection alleviating the green cough.
Since the infection has an affinity for the costal cartilages, it is possible that its inflammation is causing
severe chest pain. Another possibility of fractured rib due to violent coughing is also known to occur.
I would advise you the following:
Get a clinical evaluation, examination by an ENT and also an X-ray if the chest in two different vies to find out if you have fractured ribs.
Strapping by an elastoplast after full expiration to the area of pain so that the movements are reduced to have reduced pain.
Rest of the treatment depends upon the findings