Nose Picking

This is one of those disgusting things that is really driving me crazy. I know all kids pick their nose but I feel like I am always saying "Get your finger out of your nose". Even as I sit here to write this I have to say those dreaded words. When will it end? How can I get her to stop? Recently she was sick and I told her that the germs that make you sick can come from picking your nose. I was quite proud of myself thinking maybe this would do the trick. Instead all I get is her picking her nose and then pretending to spit out all the germs. I hope this is something she will outgrow at some point.