So my one nipple is really sore but NOT when breastfeeding - just when it rubs against my bra or shirt! My daughter doesn't have any mouth symptoms or a crazy diaper rash. She's always had severe eczema and is having a flare right now - not sure if it's from the introduction of new food or the recent hot weather ... could that be a sign? Anyone have a yeast infection and was able to treat at home?