Thanks for using HealthCareMagic
I would be pleased to answer your question
You seem to be having a chest infection
with focal involvement of the lung tissue and the covering of the lung called pleura
. The area pains when you cough. The only other possibility includes the inflammation of the chest ribcage muscles or the cartilage
I would suggest you should surely show a chest physician who would examine the area and ask for certain investigations if need be like pulmonary function test or chest x ray .
thanks and take care