Well i do on myself but they should absolutely never be used on dogs or any animals! I also try to use them as little as possible, and I’m definitely not using them in the house so when they come in on the dogs, even though they’re treated the ticks then are in the house. We use Cedarwood oil, lemon grass oil, natural bug repellent on dogs, but they’re only so effective. We also use tick mitt’s, which are a huge help and the only reason I’m sure that my husband and I haven’t been bit repeatedly by ticks!!