Thunderstorm Phobia in Dogs: Natural Therapy

My dog Sampson is a lab/hound mix, who is very afraid of thunderstorms and loud noises, such as fireworks and gun shot. During a thunderstorm, his whole body shakes, he pants, whines and paces from room to room. He tries to hide in closets and the bathtub. I have tried many different remedies, including Dog Appeasing Pheromones. After being up all night trying to calm him down, during a severe thunderstorm, I was at my wits end. I called the vet to ask for tranqulizers. The vet suggested I try giving him Melatonin. I give him one, 3mg Melatonin before a thunderstorm and he sleeps right through it. It is amazing!!