I've never had this problem with my party pigs. I would recommend standing it upright and gently depressing the button to relieve pressure.
Did you bleed off all the excess air when you bottled it?
Allergy Warning: This post was made by a person who may be nuts
From the store: Nothing right now, how sad
Up Next: Thinking about an amber rye
Secondary: "Not as Pale as Death" pale ale (since april, man I hate bottling.)
In bottles: Lager than Life Beer, Rocky Raccoon Honey Lager, A nameless Imperial Stout (my first AG!)