Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand..
As per your complain white substance in mouth and throat with soreness, loss of taste and redness/inflammation as well as having a poor immune system, all symptoms points towards yeast infection known as
Oral Thrush..
You can consult an Oral Physician and get evaluated and along with clinical examination he can also advise you to get a microscopic examination of the white stuff..
In case if it is thrush he can advise you to take anti fungal medications like
Nystatin mouthwash,
clotrimazole lozenges and take ample of probiotics like Yoghurt and garlic..
Drink plenty of water and maintain a good
oral hygiene..
In case if it is not thrush it can be enlarged papillae or accumulation of food debris and dead cells over the papillae and in this case using a tongue scraper to clean the tongue and gargle with 1:1 solution of
hydrogen peroxide in water will help in clearing the tongue..
But chances of thrush are more consistent..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.