How long after last vomit do you wait to leave the house? In October Zuma had 3 days of vomiting and after she was clear on the last day we waited 3.5 days to leave the house. And ended up infecting 7 of my family members even though my husband and I and baby boy never got it. So am I not waiting long enough? Zuma got sick 4 times yesterday with the last time being at 8:30pm and wasn't sick during the night and seems back to normal... So would the family Easter egg on Saturday be a bad idea?