If you dream about the fairy, then it shows that you are looking for help, but cannot accept this fact. Perhaps you are the person that does everything by himself, therefore you find it hard to accept others help. If you see the fairy that is the evil one, then you should release all of the bad emotions that are in you. The fairy could also symbolize the childhood and wishes that you have not fulfilled yet.
Read more about dreaming of Fairy in other dream meanings interpretations.