Hello, Your brother is suffering from severe cough for a couple of days. His history is that he had got diagnosed with pneumonia but did not get it treated, didn t take any medicines. Presently, he is having difficulty in breathing, shortness of breath, heart rate not normal & is also bloating. Your brothers symptoms indicate that he is suffering from complication of pneumonia. He should have got treated for pneumonia in time. He is suggested to get clinically examined by a GP, get sputum, swab and pus / mucus in the lungs tested to look for infection. He may require to get X-ray or CT done. Lung abscess, mucous/pus will be treated with antibiotics, if required it may need to be drained. His treatment will depend on the pathology detected and the severity of the symptoms. The expected pathology that may be detected are empyema, pleural effusion, pleurisy, lung abscess, bacteremia and septic shock, etc. He may need to be treated with combinations of antibiotics like clindamycin and metronidazole. He can take PPIs, one stat when needed for relieve from bloating. He should be connected to a Physical therapist for lung exercises under observation. He should take liquid / semi solid diet and stay adequately hydrated to prevent throat mucosa from drying. Cough lozenges and using a humidifier may be helpful. Since his heart rate is not normal, he is advised to get hospitalized and get thoroughly checked and treated. He needs urgent medical support. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Nupur K., General & Family Physician