No matter what you do, you need to start pumping that milk out or you will lose it. Pump the contaminated milk and find out how long it takes for the botox to leave your system. Ask the pediatrician. In the meantime, unless you have some previously pumped milk, I suppose you'll have to feed formula. But, you need to keep the breast milk production up by pumping or you can lose the milk fast. Getting it back is almost impossible. Good luck!!!!