Marie Davis, I noted your post and it brought to mind a case I had wherein the mother and baby had a very resistant thrush, The pediatrician recommended Gential Violet, it was 1/4% and to used four times a day for 2-3 days. The infant's entire mouth ulcerated! The infant could NOT suck at all. We fed her hold a dropper over her mouth, she acted like a little bird and swallowed her EBM in this manner until all the blisters healed (about a week) and then the infant had to be trained by finger back to the breast. I'm afraid of prolonged use-and I mean beyond one application.