 Just place the recommended number of drops on a biscuit or in their water and keep them in sight in a dark, quiet, den-like environment. And as I mentioned, now through Monday, all 12 ZAMZOs have extended the sale on our homeopathic drops for dogs and cats. We even have licking mats on sale that release endorphins and natural bully sticks to give your dog something to chew on that lasts for hours. So even if the actual 4th of July is over, the fireworks and celebration continue through the weekend. Make sure your pets are safe, calm, and comfortable with help from us at ZAMZOs.