If after you have limited to a person access, there was a need to allow him to see him to see your chronicle and send messages, then in this case it must be unlocked. It is done very simply, it will only be necessary to figure it out a little in editing.
Unlocking a user on Facebook
After blocking, the user cannot send you private messages, follow the profile. Therefore, in order to return it such an opportunity, you need to unlock through the settings in Facebook. You need to perform only a few steps.
Go to your page, To do this, enter the necessary data in the form.
Now click on the arrow, which is located near the quick help menu to go to the "Settings" section.
In the window that opted, you need to select the "Block" section to go to configure certain parameters.
Now you can view a list of disabled profiles. Please note that you can unlock not only a specific person, but also various, events, applications that you previously limited opportunities to interact with the page. You can also allow sending messages to you for a friend who has previously been added to the list. All these items are in the same section "Block".
Now you can proceed to edit restrictions. To do this, simply click on "Unlock" opposite the name.
Now you need to confirm your actions, and on this editing is over.
Please note that during configuration you can also block other users. Note that the unlocked person will be able to browse your page again, send you private messages.