My two kids have SWCAH and my daughter whenever she is sick with any viruses or whatever always vomits.  She often ends up in PMH for this reason.

My son as a baby had chronic reflux and had to be put onto Losec which is usually only prescribed for adults with reflux.  I had to have it made up specially at PMH in a liquid form to give to him.  Luckily he has gotten over that stage now and doesn’t need the Losec anymore.

Not sure whether it has anything to do with CAH or not but they both do/did vomit an awful lot!