Cam Zoom Problem

right going on holiday in 2 weeks and my zoom is FUCKED
its a sony handycam
and it just zooms in on its own and fights against u when you trya and zoom out

any one else had this problem
what can I do

please help

Something likely is lodged inside under the zoom tab. You'll have to get it professionally fixed as you can't open it up.

Blow in it.

nah nothing lodged under it as it still moves smooth just tries to zoom in everynow and then :S