People are really good at developing Phobias which are an ‘intense state of fear’. In reality the object of fear may be relatively harmless but if it is interfering with your daily life then it really is time to get some help. 

Hypnotherapy helps by literally making you unlearn your phobia. What has happened is that over and over your mind has rehearsed that bad feeling and when the object or situation appears you react in a more intense way. If your mind can make you have that fear in the first place then it can certainly help you to overcome it and hypnotherapy is a good place to start.