Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain it seems that you have infection in throat which can be bacterial or viral in nature and the swollen glands under the tongue can be due to
swollen lymph nodes under the jaw and can be due to infection..
The black coating over tongue can be due to
Black Hairy tongue due to overgrowth of bacteria or fungus, accumulation of debris and food particles and can be staining due to particles of medicines..
You should continue taking the medicines that you are taking and along with it do warm saline gargles, steam inhalations and chew a
vitamin c pellet daily..
Clean the tongue using a tongue scraper,gargle with 1:1 solution of
hydrogen peroxide and water and also you can dip an ultrasoft toothbrush in this solution and clean your tongue with it..
Hope this information helps..
Thanks and regards.
Dr. Honey Nandwani Arora.