I'm not sure how to help you... I can't even help myself... But here's what I've been trying or thinking of trying.
Read other writings
You've been staring at your own work for days, or longer, with no idea how to keep going. It's time to start looking at other things. Even if it doesn't help get your creativity flowing, at least you read something other than what you've been rereading forever, right?
Try to critique other stuff
Movies, poetry, presidential speeches, whatever, just start critiquing. What's well thought out, what's needing more work, what do you like/hate/want to burning a fire. Figuring out what you like and don't like about something else may help you remember how to write the stuff you like.
Revisit a previous work - or look at a new one
If you're like me, you have three to five writing projects at different stages of development at one time. I'm not saying it's optimal... but it's what I've got. Writing a fresh story, or getting a new take on one you've completed may "unbind" you from the current one. Though I do really dislike task switching unless it's writing for one and editing for another, I've been thinking about doing this.
Maybe you really just need a break...
So take one. How long is up to you, but I advise setting a strict "break" start and stop date so you don't blow way past the writers block end and waste a bunch of time sitting on your butt playing video games.
Maybe you really just need to power through...
The thing I didn't want to think about. Maybe I should just suck it up and write something horrible so I can get back to writing. Ugh. Even this blog post sucks. Maybe this was the horrible thing I needed to get out.
Whatever you decide to do, remember to stay positive. Writer's block isn't forever. Night kiddies ^_^