Weird Mouse Offset?

So my sister recently stepped on my MBP while it was closed. Opening it up, I found no visible damage. However, I can now press on an area just to the right of the trackpad and it clicks like the mouse and selects things. So it's kind of like I have a mouse to the right of my trackpad, and it's really annoying because I rest my palm there and the mouse is always clicking somewhere else when I type. Is there any way to remedy this without going to the Apple Store? I have Applecare if that helps at all... Thank you in advance.