Sore throat for 10 days and yesterday I got inflammation in the middle of the tongue. Also, the middle of my tongue is yellow.

Tongue. Bacterial overgrowth can cause inflammation. Antibiotics can suppress bacteria and allow four fungal overgrowth. Brush tongue gently every day. If inflamed yellow area does not go away in a few days, see your Dentist.
Yellow tongue. Yellow tongue may be caused by an overgrowth of bacteria on the injured papillae of your tongue. Avoid coffee or alcohol and brush your tongue frequently.