From what I've read, fear is a key thing its what stops us from achieving some remarkable things. All of us in some way or another are afraid and its this fear that confines us. For example, I've been trying to learn to astral travel and the thing that most people have to get through before they can do this is fear. Whether its fear of harm, failure, consequence or phobia its that one thing I believe that truly has a hold on us. I have no real answer on how to overcome fear, I fear a lot of things but I guess knowing that you are in control or attempting to take control frees some of that fear so I think OB is right, just relax and know that its just a dream and you are completely safe... With that said I don't think I could dream something to do with needles or razors (my phobias) no matter how much control I have over a dream so good luck and if you overcome this then hats off to you, you'll have my complete respect as a lucid dreamer