Why is my westie afraid of the Hair dryer?

She was probably startled by the noise and now whenever she sees it is afraid it will hurt her. This happened to my dog. I practice shooting with a bb gun sometimes and when I take it out of the closet, he goes crazy! What I did was set the gun [locked with no bb's of course] on the ground and waited awhile. Eventually he got used to it and realized it wouldn't hurt him. I had to do this a few times but he got the idea soon enough. Try doing the same thing with the dryer. Leave it somewhere on the ground [where you can see it] and wait for your dog to investigate. Hope this helps!