I thought I had tried everything for my extremely nervous dog who shakes so much at fireworks, storms etc but I tried this and the bandana with the calming spray and what a change in her! Yes she still shakes at the extremely loud fireworks but she now stops as soon as the fireworks stop as before she would be in a terrible state for at least 30-45 mins after they had finished! The last couple of nights she has just been so relaxed and stayed with me the whole time rather than going off to hide! I know every dog is different and it might not work for your dog but give it a go. I’m glad I did!