If you have previously recommended this thread, you should see a tick / check mark on the recommend button. Click the tick to undo the recommendation (the tick may appear to change to a cross as you do this.) If you added a comment with your recommendation, you will need to delete that from your facebook wall separately.
I've just set up a facebook group for all mums in Temple Park or Binfield. I thought it would be a good way to get to know each other. Search the group and join up so we can arrange some coffees/swap baby stuff/and save each other's sanity!