Advice re: dogs scared of fireworks

[Mrs Grumpy]

I have a new dog, who will be fine except for shouting.

Other dog is very damaged (although better than he was) and all I can do is try to limit stuff for him. Curtains all closed and all tellies and radios on all over the house. New Beaphar collar on. Tight T-shirt/wrap on. Calmex doesn't seem to make any difference to him, so will be trialling Theanine