Yes. I'm sure we could help you more if you gave us an example of the type of behaviour yous grandson displays and how long the episodes last.
There are so many ways you can deal with this, but you need to make sure you all approach it in the same way, staying calm (that's hard) when he has a meltdown.
Does he have sufficient language to explain how he's feeling when the problems occur? Please tell us a little more.
Lack of public toilets in towns.
Good Morning Wednesday 24 April 2024