If you have blocked someone unintentionally or changed your mind about the block, though, it is likewise reversible. You can alter your Personal privacy settings to unclog and enable someone back into your Facebook world.
How Do I Unblock Somebody On Facebook
1. Click the down arrow beside "Account" on top right of any page on Facebook.
2. Click "Privacy Preferences" from the Account menu.
3. Click the "Edit Your Lists" link under the Block Lists heading. It is at the bottom center of the page.
4. Click the "Unblock" link next to the name of the individual you desire to unblock. A list of individuals you've blocked is discovered under the Block Users section.
Suggestion
Uncloging someone does not instantly put that person back in your good friend list. You must add the recently unblocked individual as a friend and await them to verify the demand.
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