Hey I am ganeshan from India....I have same problem..Which u all r suffering...I lost my job because of BB...I have this prob for more than 7 years....I tried Grapefruit-Seed-Extract also in nostril n in mouth cleaning....even that doesn't work me...I lost all hope...after Grapefruit-Seed-Extract fail for me......one day my mom bought alma from supermarket.....So I ate that because I love alma......next day I found my coating in the tounge was getting lesser than normal coating..so from that day I started having alma juice daily......and my coating in toungue has gone completely in a week.....and my breathe become very fresh.....my 7years worries was finnaly solve with a little n small alma.......so guys pls give a try.....if possible eat tamarine juice also daily....