I don't know what to do anymore, thrush and my tongue is red. It all t…

I don't know what to do anymore, thrush and my tongue is red. It all turned into stomatitis ??‍♀️ What should I do? The pediatrician said to treat with soda or furacilin with a bandage. I tried on the bandage, red spots remained (blood), now the baby is afraid not to let me near her, she doesn't even eat ? from hopelessness she eats and that too with difficulty. Maybe some spray or ointment so that it's not treated with a bandage? ?