I will help you feel safe. It is ok to stay away from something that can scare your child. For example, Cross the street to get away from a barking dog. Do not let your child watch scary tv shows. Then your child knows you understand this is hard.
Children feel stronger when they have some power over the fear.
Give your child things to do to help with the fear. Let your child turn on a nightlight or flashlight. Then your child can make the room not so dark and not so scary. Let your child turn on the vacuum cleaner to be in charge of the noise. Ask your child to turn off a tv show that is scary.