Calpol Vaporiser and pregnancy?

Just needing some  help  regarding  the Calpol Vaporiser  for  children is  it  safe to  use while being  pregnant? as i got  it for my daughter for  when she had  a  bad cold. and have decided to  try and use  it for  myself now as i have a really bad cold which preventsme from  sleeping so hoping it  will help but not sure if it will be safe  while pregnant. does anyone know anything about it?

Thanks, Chiyo