Hi
Vaporisers are great when bubba has a cold...how they work (from memory! lol) is at night time, the air in the bedroom gets cooler, so by 2-3am its quite cold and dry, this makes any difficulty the child is having breathing worse... The vaporiser re-moistens the air and make sit easier for the bubba to breathe again.

Charlotte was really bad when we came home from hossie as I was really sick an the poor thing had such a runny nose she could barely breathe!! the vaporiser really helped, so did elevating the bassinette mattress. And if you can, grab some "fes" its saline for their nose...loosens all the mucous so they can sneeze it out or swallow it.

HTH and I hope bubs feels better soon