Seconding this... One of my parents dogs is actually on valium for thunderstorms and stuff because she freaks out. All out panic attacks, etc.
Get a vet appointment and explain the issue. For some things, its really just better to medicate, especially with a "planned" event like this. Dose around midday or early afternoon before fireworks start going off, and the dog gets to basically sleep around and enjoy the day instead of being so freaked out they cant even go outside to go to the bathroom. Poor puppies.
my parents had a saint bernard that was crazy afraid of thunder.
my dad was told by a neighbor to give him a benadryl capsule hidden in something like a piece of lunch meat or chunk of cheese. i would sit out there with him petting him & letting him lay his head in my lap until the benadryl knocked him out.
the benadryl never seemed to make the dog sick or anything and we never saw any major problems cuz he ONLY got it when it was needed.
i'm sure a vet would say "no" to it, but it worked on that dog....
my current collection
1.2 kiddos
1.0 better half
0.1 mojave ball python (Nyx)
0.1 Dumerils Boa (Hemera)
1.0 Eastern Box turtle
3.4.? rats (? = litter coming any day now)
0.1 dutch rabbit (Lucy)
my "future hopefuls"
0.0.1 pied cockatiel 0.0.1 white bellied caique 0.0.2 guinea pigs