I accidentially burned a human effigy in a bonfire, thinking it would reverse hollowing. Instead it cut me off from all invasions and co-operative online play. There is now a status symbol below the stamina bar with a crossed white sign soapstone.
Is there any way to reverse this effect? Is there an item to do this, does it wear off automatically after a cetain amount of time or is there any other requirement like killing the area boss?