Vet-recommended IGR spray for Springer Spaniel fleas

A third recurrence is a clear sign the environment is the problem, not the treatment on your dog. Fleas are cycling back from eggs and larvae in your carpets and soft furnishings — and that's exactly what an IGR home spray is designed to stop. To make sure we're pointing you at the right products, a couple of quick questions: what size is your Springer, and are you currently using a prescription spot-on or tablet from the vet, or something over-the-counter? That'll help me figure out whether the dog side is fully covered or needs attention alongside the home treatment.

Bravecto is excellent — fluralaner kills adult fleas fast and lasts three months, so the dog side is well handled once you give her the next dose. The problem you're describing is almost certainly a reinfestation loop from the home. Eggs laid before the last treatment have been hatching in waves, and without something that targets larvae and eggs in the environment, you'll keep seeing adults appear. Your vet is absolutely right to recommend an IGR spray. The one I'd point you straight to is Indorex Defence Household Flea Spray. It's the one most vets and vet nurses actually use at home themselves — it combines permethrin to knock down adult fleas with an IGR (pyriproxyfen) that stops eggs and larvae from developing into adults for up to twelve months. One can treats up to 90 square metres.

For a typical three-bedroom semi you'd probably want two cans to be thorough — one tends to be tight if you're doing every room, hallway, and stairs properly. Before you spray: vacuum everywhere first, including under sofas and along skirting boards, and empty the vacuum outside immediately so you're not just redistributing eggs. Wash your Springer's bedding at 60°C. Then spray all carpets, rugs, soft furnishings, and the gaps around skirting boards — keep pets and people out of treated rooms until everything is fully dry, usually a couple of hours. One important note: Indorex contains permethrin, which is lethal to cats. If you have a cat in the house, keep them out of treated areas until completely dry and well ventilated. For a dog-only household it's completely safe once dry.

Yes — timing is the key thing people miss. Use the Indorex the same week you give your Springer her Bravecto dose. That way you're eliminating adults on the dog and stopping the environmental cycle simultaneously. After spraying, vacuum regularly for the next few weeks — the vibration actually encourages remaining pupae to hatch, so the Bravecto can deal with them quickly rather than letting them sit dormant for months. Keep Bravecto on a strict three-month schedule without gaps; even a week's gap is enough for adults to establish and lay eggs. Do that consistently and this really should be the last recurrence.

Good plan. Two cans, vacuum thoroughly before you spray, treat the same day as her Bravecto dose, and keep that three-month schedule tight. You're in a much better position now that you're tackling both sides at once — most people only ever treat the dog and wonder why the fleas keep coming back. Should be the end of it for her.