So I went to this mommy group yesterday and I was told that one of the kids got to my sons bottle and she had thrash idk how to spell it but I was advised to go home and sterilize it. So I get in my car to head to my drs appointment and my sister was in the car watching my son. So I get back to my car and seen that the milk in his bottle was gone and I asked if he put his mouth on it and she said yeah so I panicked and told her the situation that occurred and when we went to sleep he woke up with a fever and threw up what looked like cottage cheese and it stunk so badly. What would you suggest me to do?