pour boiling water over some whole cloves, leave it to cool, remove the cloves and let him drink the 'juice' cloves are a natural anaesthetic and will numb the mouth and gums.

same 'juice' can be frozen into lollipops/ popsicles and is just as effective

you can add the 'juice' to orange juice or cordial/dilute pop or add plain sugar to make it more pallatable for your child if necessary.