Hi and thanks for the query, It is very important to get the throat and lung affections appropriately. I think observing the throat very well and getting a chest X ray done could give us a good idea about the extent of the infection of the lungs. Depending on the extent of the lesions, a specific choice of anti biotics can be chosen. If you have been coughing for more than three weeks or have lived by someone also coughing, it shall be prudent enough to carefully exclude pulmonary tuberculosis by doing a sputum examination too. I suggest you consult your doctor to examined, get a sample for your sputum taken and a chest X ray done. These are the basis of a good diagnosis and treatment. Thanks and hope this helps as I wish you good health. Kind regards. Bain LE, MD.