Use these tips to make New Years eve more enjoyable for you and your child:
Arrive before the other guests to allow for gradual accomodation of sounds and sights.
Find a quiet spot where your child can retreat in a noisy environment (e.g. pillow and blanket or sleeping bag under a table or in a separate room)
Provide your child with safe calming hand fidgets.
Chewy tubes and munchies may also be calming.
Offer noise cancelling ear plugs or headphones for the count down.