hello and welcome to HCM,
I have understood your problems regarding your cough
which is persisting in spite of the antibiotics.
You need to understand that the cough will not be due to infection and will be because of reflux which can cause irritation and cough especially after antibiotics.
You need to immediately start on a reflux medication
such as what i give my patients like tablet pantoprazole
40 mg twice daily before food for two weeks at least along with an antacid
syrup thrice daily after food for two weeks at least.
Also avoid any cold food or fluid and avoid anything spicy, oily and high flavored.
Furthermore do not strain your voice and do not frequently clear your throat
Take steam inhalation and try to always take warm fluid to keep your throat form drying.
Wait for two weeks and watch. If you are not feeling better then you must take a throat swab, upper GI endoscopy
and sputum examination and get back to me.
Dr Sriram Nathan