Drainage down the throat also known as Post nasal drip
can occur due to causes like Sinusitis, Upper Respiratory tract
infection, acid reflux, allergies etcetera.
I would suggest you consult an Otolaryngologist and get evaluated and a thorough clinical evaluation and investigations like PNS View x-ray, nasal endoscopy, upper G.I Endoscopy etcetera can help in diagnosis and treatment can be planned accordingly.
In case of infection, you can be advised to take a course of antibiotics, anti-inflammatory painkiller, decongestants oral as well as a nasal spray
, antiallergic, and mucolytics.
As of now, you can take anti allergic like Levocetirizine
, Mucolytics like Ambroxol. If it is due to acid reflux antacids and proton pump
inhibitors like Omeprazole and diet modifications can be advised.
In case of allergies, take anti-allergic and preventing exposure to the allergen can be advised. Do warm saline gargles and steam inhalations. Limit exposure to dust, avoid chilled foods and sip on warm water.
Hope I have answered your query. Let me know if I can assist you further.
Dr. Honey Arora