Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain black discoloration of tongue is commonly due to a condition known as
Black Hairy Tongue and although the appearance is unsightly but is commonly harmless..
It can be due to conditions like overgrowth of tongue papillae that contains
taste buds and do not shed normally..
There can also be overgrowth of bacteria and fungus over tongue, taking medication containing
Pepto Bismol, excess intake of tea and coffee, long term intake of
soft diet can be a cause..
You should consult an Oral Physician and get evaluated..
In case of black hairy tongue cleaning the tongue with a tongue scraper, gargling with 1:1 solution of
hydrogen peroxide and water and using a soft toothbrush that should be dippes on this solution and cleaning the tongue gently can help in gradually cleaning the tongue..
Taking raw fruits and vegetables can help in cleaning the tongue with Frictional action..
Gargle with any mouthwash will help..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.