Hello, Your symptoms indicating more towards common cold leading to upper respiratory tract infection caused by viral infections mainly which is self limiting condition if few steps taken by a patient. But antibiotics should be taken under a physician guidance as this condition may lead to secondary bacterial infection. Some investigation should be done like complete blood test, sputum culture and sensitivity. A few steps you should take like drink plenty of warm water, steam inhalation, avoid spicy food as it can irritate your throat, gargle with warm salty water, avoid smoking and odour. Get well soon.