If you are looking for an all natural remedy containing only Essential Oils check out my Calm your Cough, this can be made for kids under 1 yr old and for big kids and adults too.
It is really good for when you have that nagging tickle especially when you lay down at night!
Essential oil of Eucalyptus is also very good for putting a drop on the kiddo’s pillows at night, but it has to be Eucalyptus Radiatis or Smithii, as the Globulus is not safe for children under 5!