My youngest was a bit different. Every year in January or February he would come down with Croup. I had to nurse him in the hospital in an oxygen tent the first time. Every year, but only once a year he would get it.
  It would almost always be in the late evening or early am. I would bundle him up and rush him to the hospital and 1/2 the time he would be better by the time we got there.
  The other half he would get the steroids, and breathing treatments and meds.
The doctors told me that when it happened, to bundle him up and take him outside. Either that or in a steamy hot bathroom.
  I could never get it steamy fast enough. He would be so frightened he would cry and then I would be scared to death. A child who can't breath, can't be allowed to cry.
  So we would sit out in the cold until it got easier to breathe. We would then stay up late and watch movies "Tremors" was his favorite. It calmed him down even if it wasn't the most appropriate movie for a child.
  Most children outgrow it by the time they are about 10.  He is my only one who has this problem and he also has exercise induced asthma. I often wonder if my having pneumonia when I was pregnant with him somehow transfered over. I know it isn't, but I still wonder.