 Sure. I would use it before that time to see how your pet reacts to it so that you know what to expect just to make sure it doesn't have any adverse effects. I take my dog to a daycare, and the owner of the doggy daycare mentioned that because they're in a strip mall situation and it's all inside, they don't have any outdoor stuff, that they get a lot of people who board their pets on 4th of July. Right.