What can I do about chronic post nasal drip I've had for the past year?

In addition to your post nasal drip, do you experience a sore throat, difficulty swallow, voice changes (hoarseness), or feelings of phlegm or food getting stuck in your throat? Post nasal drip can occur due to irritation from stomach acid that refluxes into the nasopharynx when you lay down at night. You may not experience what is commonly described as "heartburn," but if you experience any of the above symptoms you may try a reflux diet and high pH alkaline water to see if this improves your symptoms.