How do you help a 19 month old with separation issues when dad leaves? We haven't had this issue…

How do you help a 19 month old with separation issues when dad leaves? We haven't had this issue until we brought our daughter home from the hospital. Every time dad leaves the house, car or even room he throws a fit and won't stop until he sees him again. He goes back to work Thursday and I'm not sure how this will work on my part.