Hi, one thing I want to make you sure that whatever we eat or drink, smell will come out during breathing (inhalation or exhalation). A pungent peculiar smell comes out when you have ate garlick or onion in excess amount. Similarly perhaps you have noticed that the smell of wine, some feel when you interact with a drunk person. Next reason may be due to some nasal infection
if it is prolonged and mucus has impacted from long time in nostrils. So the best way is to avoid these eatables and secondly clear your nose regularly. If sinusitis
is there take a tt. Good luck.