Flea prevention for Dalmatians after spot-on failure

If store-brand flea drops failed last summer, that's actually a really common story — a lot of supermarket and budget spot-ons use older active ingredients that fleas in the UK have built up resistance to. The most effective prevention depends on your dog's size and weight, your local tick risk, and whether you want a spot-on, collar, or oral treatment. Some widely sold products are significantly less effective than others, which sounds like exactly what you experienced. To point you to the right thing: what's your Dalmatian's current weight, are you in a rural or high-tick-risk area, and do you have a preference for treatment type — spot-on again, or open to trying a chew or collar?

Good to know — 24kg and high tick exposure in the Cotswolds is exactly the situation where you need something properly robust. Before I give you a recommendation, one quick question: is your Dalmatian otherwise healthy, on any medication, and has she ever had any skin sensitivity or reactions to topical treatments?

Perfect — in that case I'd go with Bravecto Spot-On for Dogs (the 20–40kg pack covers her weight exactly). It uses fluralaner, which works differently from the permethrins and fipronyls in most budget drops, and it has strong UK field data for tick kill. The big practical advantage is that a single application lasts 12 weeks — so you're not trying to remember monthly treatments through summer. It kills fleas within hours and tackles the main UK tick species including Ixodes ricinus, which is what you'll be encountering on those Cotswolds walks. For a dog with her level of countryside exposure, the 12-week duration and the tick efficacy are what matter most, and Bravecto consistently outperforms the products you were using. You apply it to the skin at the back of the neck the same way as any spot-on, so there's no change in routine.

You can use it continuously without breaks — it's licensed for year-round use and there's no guidance recommending gaps between treatments. Fluralaner has a well-established safety profile and it's been through full veterinary licensing in the UK. The only thing worth noting for Dalmatians specifically is that the breed can have sensitivities to certain drugs due to the MDR1-adjacent transport quirks some Dalmatians carry, but topical fluralaner doesn't cross the blood-brain barrier in the way oral macrocyclic lactones can, so that's not a concern here. If you ever consider switching to an oral treatment in future, it's worth a quick vet check first — but for Bravecto Spot-On you're fine to use it as directed on the label.

Good choice — it should make a noticeable difference compared to last summer. Make sure you part the fur properly and apply directly to the skin rather than the coat, especially with a Dalmatian's short dense hair, to get full absorption. If you're in particularly heavy tick habitat, it's still worth a quick check after walks in the first day or two after application while the drug is reaching full systemic levels. After that you're well covered for the full 12 weeks.