My iphone 4 has water damage and won't let me off the lock screen?

I spilt water on my iphone 4 but just left it on the side for a week. So she I turn it on it freezes on the lock screen and won't let me touch nothing so I tried the thing where you hold the two buttons down and when it goes off I turn it back on but that doesn't work.

You have to take it to the Apple store and get it repaired. I won't recommend you to do something yourself as it can make matters worst.

Might be worth buying another phone, even if it's another iPhone 4. Repairs might cost more than what the phone is worth. Go to a local computer shop for repairs instead of apple. It might be cheaper that way.