Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concern.
As per your complain bad taste in mouth along with bad odour in nose along with a history of having heartburn can be due to
acid reflux and as you do not have heartburn now it can be due to
laryngopharyngeal reflux or silent reflux..
While bad taste in mouth and bad smell in nose can be due to a number of causes like
Sinusitis, upper
respiratory tract infection, nasal polyps, poor
oral hygiene, oral infections, tonsil stones etc..
I would suggest you to consult an Oral Physician and get evaluated and a thorough clinical evaluation and investigations as per suspected cause can be diagnostic and treatment can be planned according to the cause..
As of now chew sugarfree chewing gums that are mint or menthol flavored, gargle with mint flavored mouthwash and drink plenty of water..
Avoid high aroma foods like onion and garlic..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora..