4 year old nausea. Please help!

My four year old has nausea. She got it from the baby I babysit. Please if your kids are sick do not send them to the babysitter. For now both my husband and my daughter are throwing up. She is very upset. I need to know if any moms out there have an advice on what to do for a throwing up toddler. I am not sure if they make anti-nausea medicine for her age. Or of any other methods to help her stop. Please any advice I would be so thankful for.