Hello, It is good to know that you have been treated for pneumonia, after treatment you should take plenty of water(one liter per day) to keep yourself adequately hydrated. That can help to loosen the phlegm in your lungs. Avoid taking alcohol at all costs. Stay at rest & avoid any stress & anxiety. Since you are still coughing phlegm & have pain chest; you should get a follow-up treatment done. Sometimes, complications occur & fluid accumulates in between the lining of the lungs (empyema/pleural effusion) & if the infection spreads it becomes an abscess. Get physically examined, evaluated & treated. You may have to go through repeat Imaging & Blood tests. In the meantime for pain, take Ibuprofen or paracetamol. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Nupur K, General & Family Physician