My MIL's Collie is terrified of fireworks..her vet told her about this herbal spray that is actually for human anxiety..it's called Rescue Remedy...it contains (and i happen to have a bottle right here) 5x dilution of flower extracts of Rock Rose, impatiens,clematis, star of bethlehem (whats that?! lol) and cherry plum in a grape alchohol solution..grape???hmmmmm
anyway..I have never tried it on any of my dogs but my MIL says it does help calm her down alot.