Hi.
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain the yellow furry coating over the tongue seems to be yeast infection known as
Oral Thrush and it can occur due to a number of conditions like generalized lack of immunity, dry mouth, intake of antibiotics and oral and nasal steroids,diabetes etc..
The pink spots at the back of the tongue seems to be inflamed circumvallate papillae secondary to infection..
You should consult an Oral Physician and get evaluated and a thorough clinical evaluation can help in confirming the diagnosis and in case of thrush he can advise you to take
anti-fungal medication like Nystatin mouthwash and suck on
clotrimazole lozenges for 2 weeks and if still does not resolve oral antifungals like
Fluconazole or
Itraconazole can be given..
Take ample of probiotics like Yoghurt and garlic..
Do warm saline gargles and chew sugar free chewing gums as it help in stimulating saliva flow..
Avoid antimicrobial mouthwash..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora