C.K.
The "purple stuff" that someone mentioned is Gentian Violet which can be purchased over the counter. You have to be VERY careful in how it is used. This is usually not recommended as a first line of treatment. The Nystatin applied to your little one's gums, tongue etc. works really well. Forget the Q-tip, use your finger, it is a lot easier. If you have it on your nipples you can get Nystatin from your doctor or just purchase OTC 7-day treatment yeast infection cream and apply some to each nipple after each feeding. You don't need much. Everyday you have to sterilize anything that came in contact with your baby's mouth, paci, toys, spoons etc.
My little guy had it and I was not on antibiotics. He also gave it to me. Diet does plan an important role because whatever you eat the little one can also get in your milk. Don't freeze any of your milk, that will be a source of reinfection at a later date if you have not used all your milk. Good luck, I hope it clears up quick for you!