Board Thread:WARNING ALL USERS False Info\Spoilers/@comment-24398707-20140108200752/@comment-24132585-20140108201727

Stinkycheez95 wrote: i know that but i find it strange that the only consequence peter had from coming back to life was being weak for a long time

He had that consequence because he didn't die a specific way so hallucinations couldn't affect him. The Surrogate Sacarfices "opened a door" in Stiles, Allison, and Scott's mind as Deaton had stated. They are having hallucinations because the door is opened. When Peter died no door was opened so it didn't affect him.