Hello Mr.Mandal, from the available history the likeliest possiblity is that you have a viral upper respiratory infection
. If you don't have high fever
, lethargy/weakness or a poor appetite
you may be able to tide over the problem with regular simple analgesia with Paracetamol(brand names Crocin
, Calpol, Dolo, P500 etc). For your age you will have to take 1000 mg each time and may repeat a dose after 6 hours have elapsed since the previous dose. You can also benefit from salt-water(warm) gargles or Betadine
gargles(you can buy it from any pharmacy)- gargle 2-3 times a day. However if you feel really ill with any of the other symptoms I have notes above you may have to visit a doctor for an assessment. Did the antibiotics make a dramatic difference on the previous 2 times? If yes, you may have to see your doctor again. Hope this helps. Best Wishes.