It likely is oral thrush which is caused by candida; this should improve or go away in time as well.
I would also avoid all molds; I don’t see you mentioning this. All nuts, dried fruit items, etc. contain molds which feeds candida. This is meant to be saved for stage 2/3 when you feel much better.
Starch should be avoided as well; thats why potatoes and rice aren’t on the diet.