Blocking someone on Pinterest prevents them from following you, saving your pins, or messaging you. Unblocking reverses this and restores normal interaction (though you won't automatically refollow each other).

: Select Unblock from the menu and confirm your choice in the pop-up window.

Pinterest does not publicly disclose a specific "cool-down" timer for blocking/unblocking; however, rapid, repetitive blocking and unblocking of the same user can trigger spam filters or temporary account restrictions.