Wii remote B button problem

I don't know what happened but my wii remote's B button is really stiff and too sensitive now. It feels weird pressing it and the slightest touch will trigger it but pushing it properly won't do anything. Anything I can do to fix it? Will I have to open it up? Don't say call Nintendo cause I'm pretty sure it's going to be expensive (I'm in Asia). Any help will be appreciated, thanks :)

I've had my share of experiences with damaged controller buttons and what I've learned is that you're better off buying a new one. Yes there are remedies but they temporary or simply don't work at all. Don't bother calling Nintendo for repairs unless it's a snapped safety strip or a damaged console. Sorry.