My tongue has a white coating and i have a metallic taste at the front of my mouth. i've tried cleaning it with my tooth brush, but it comes back, also it is really far down my tongue where i can't reach. what do i do?

Dentist consult: See a dentist for a complete and thorough medical and dental history and a one on one clinical exam for the cause of your symptoms. There are many causes or combination of causes for what you describe.

Trench Mouth: Good day; Usually these symptoms, especially the metallic taste are symptoms of Acute Tecrotizing Ulcerative Gingivitis; usually gums are are tender, bleed and painful. Considered a noncontagious infection of the mouth. Found in students around exam time or soldiers before battle. Consider a dental visit in the near future.