I have a question about facebook?

[Brittany]

Once you block someone can you ever unblock them again? Or is it permanent?

[Chino Moreno]

You can unblock them. You'll see there name in your settings and it will say unblock. (:

[csristovski]

yes you can

[Christin]

You can always unblock someone.
Go to setting > privacy settings > blocking (left side under timeline and tagging) > and then unblock as you please by clicking "unblock" beside the persons name.
Hope that helped! (:

[Cookie]

You can unblock them.
On the top right of your Facebook page, there is an icon with a lock on it. Click on it, and a dropdown will appear with a bunch of questions. Click "how do I stop someone from bothering me". This will reveal a sentence in small blue letters that says "view all blocked people". On that page, you can see the people you blocked and unblock them at any time.

[Breezy]

Yes you can unblock the person just go to account settings then click blocking you will see a list of whoever you blocked you can unblock but if you want to block them again you have to wait about 72 hours

[abraXus]

yes, you can unblock them, but keep in mind that you wont be able to block them again until 48 hours has passed

[Daniel]

You Can Unblock them Go to your Account Settings Than Go to Blocking and From There Find The Persons Name than Click on Unblock and you Should Be Good To Go