After applying Frontline to your dog, it is recommended to wait at least 24-48 hours before bathing them. This allows the product to fully absorb into their skin and provide maximum effectiveness against fleas and ticks. Bathing too soon after application can potentially reduce the efficacy of Frontline as it may be washed off before being fully absorbed.

It is important to note that Frontline is water-resistant, not waterproof. This means that while it can withstand some exposure to water, excessive bathing or swimming can diminish its effectiveness. If your dog requires frequent baths or loves swimming, it is advisable to consult with your veterinarian for alternative flea and tick prevention options that are more suitable for their lifestyle.