Do girdles help you get back into shape after pregnancy?

[Jahan]

I have a friend in the US who has told me that they are encouraged to wear girdles after pregnancy to help them get back into shape.
Another friend from Brazil confirmed that they use it too.
Have I missed something??
Do they work and is it too late now that my baby is nearly 4 months??!
Where can I get one?

A girdle will make you look like you've got back into shape, but it will do absolutely nothing to strngthen the muscles. Exercises like sit-ups and curl-ups, and just remembering to pull your tummy in will do much more to help.