Can dogs swim after a spot-on flea treatment?
With the recent hot weather, we’ve been seeing lots of dogs enjoying a cooling swim in rivers, lakes and at the beach. And honestly, who can blame them?
However, have you considered what the impact of your dog's swim could be on the environment? If your dog has recently had a chemical flea treatment, particularly a spot-on flea treatment, some of the active ingredients can wash off into the water when they swim.
It’s not something that’s talked about very often, but it could have an impact on the wildlife that shares our rivers and streams.
Can dogs swim after a chemical flea treatment?
The answer depends on the product you’ve used.
Many manufacturers of spot-on flea treatments for dogs advise keeping dogs out of rivers, lakes and the sea for a period after treatment. That’s because some of the active ingredients (fipronil and imidacloprid) can be washed from the coat before they’ve fully dispersed.
It’s not just swimming
This surprised me when I first read about it.
Swimming isn’t the only way these chemicals can end up in the environment.
Bathing your dog too soon after applying a spot-on flea treatment can also wash residues from their coat. Those residues can then go down household drains and eventually make their way into rivers and waterways through wastewater.
It might seem like a tiny amount, but when millions of dogs across the UK are treated every year, those small amounts can soon add up.
Why does this matter?
The chemicals used in many flea treatments are designed to kill insects.
Scientists have detected ingredients from pet flea treatments in UK rivers, and researchers are becoming increasingly concerned about the effect they may have on aquatic insects and other freshwater wildlife.
Those tiny insects might not seem very exciting, but they’re incredibly important.
They’re food for fish and birds, they help keep rivers healthy, and they’re a vital part of the natural ecosystem. If they disappear, the effects can ripple through the entire food chain.
More dog owners are asking questions
This isn’t about making anyone feel guilty for using a flea treatment. We all want to protect our dogs from fleas and ticks.
But it is important that we understand the wider environmental impact of the products we use so we can make informed choices.
If your dog loves swimming, simply following the manufacturer’s guidance about when they can go back into the water is one easy way to help reduce unnecessary pollution.
Looking for a more natural approach?
Over the last few years, I’ve noticed more and more customers looking for natural flea products for dogs, particularly if their dogs spend lots of time outdoors or are always in and out of rivers.
We have specialised in natural dog health for over 30 years, and helping owners find products that fit their dog’s lifestyle is what we do every day.
If you’re curious about natural flea care, we’re always happy to help you explore the options and find what’s right for your dog.
