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You could be suffering from a sinus infection
which is evidenced by a post nasal drip
, cough and hoarseness. You need to start on a course of good antibiotics, a mucolytic (such as bromhexine or ambroxol), and saline nasal spray
. Also, you need to do steam inhalation to reduce the phlegm and the cough. Consult a good ENT specialist
for a complete check up.