My dog is frightened of loud noises. She hides and shakes. I am worried about fireworks.
This is very common for dogs, especially if they haven't been exposed to loud bangs from an early age. They don't understand the source of the noise and it can be terrifying. Their instinct is often to bolt and scared dogs do not make good decisions, so are at risk of being run over by a car or getting lost.
If you can't avoid fireworks, the best thing you can do is prepare for it before the event and then support your dog around that time.
Don't walk your dog after dark as a sudden bang may cause them to bolt.
Make sure your dog is shut in after dark and cannot escape over a fence in fear (I learned my lesson the hard way here with an early bang in the garden before dark!). Also make sure windows are closed and curtains drawn to reduce the flashes. If you have to open a door, make sure they can't escape.
Don't leave your dog home alone around fireworks night. Try to create a safe place for your dog to snuggle into.
Make sure the water bowl is topped up as stressed dogs are likely to drink more.
Put on some music or TV on loud to mask the noises. Try to act as cheerful and normal as possible as any anxiety from you will be passed to your dog. Reward any calm behaviour and give long lasting chews and bones to distract them if possible.
If your dog retreats under a bed or sofa don't try to drag them out, they probably feel safer there.
Never try to force your dog to face its fears, or tell your dog off. If they come to you, do give them comfort.
If its really bad, speak to your vet who may be able to prescribe some calming medication to help them through the fireworks season.
Dogs trust have some useful material on their website which can be used to gradually de-sensitise your dog to loud noises. There are various levels that you can play on low volume and gradually build up to a full display!
https://www.dogstrust.org.uk/help-advice/dog-behaviour-health/sound-therapy-for-pets