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Vacuum cleaner phobia? Watch the the exclusive One Show website video:ÌýFliss Hall (12)Ìý from Ashby St. Mary, Norwich, wrote in to tell us thatÌý "I have a phobia of vacuum cleaners. I go to boarding school and we have to do duties to help keep the house clean. I always end up having to pay my mates to do the hoovering for me. My mum shuts me in the garden when she has to hoover at home!!!"

Dental phobia? Tonight's show featured One Show viewer Mike Hughes. He wrote to us in April to tell us that when he was a small boy, he had the traumatic experience of having several teeth removed without anaesthetic. Mike has had a severe phobia of dentists ever since. Even walking past a dental surgery provoked Mike into a panic attack. He hasn't been to the dentist for 27 years.

The One Show introduced Mike to Dr Tim Newton, an expert in dental psychology. Tim helped Mike to 'rewire his brain' using a process called . Tim gradually exposed Mike to dental treatment rooms and procedures using a video technique and getting him to listen to the sound of a drill. This progressed to doing it in real life and gradually built up until Mike was able to walk into a surgery and sit in a dental chair.

Recently Mike received his first filling - he's on his way to overcoming his phobia.

What's your phobia? Do you have any tips about overcoming your fears?