A good question. My experience says no, it won't work and this year is extreme what doesn't make things easier.
Normally you have to treat both: cats and environment. My friend bathed her cats as they are allergic to most common flea treatments. At the same time, she sprayed he flat and it helped.
Important is the timing - first spray the house and bath your cats at the same day. Bathing gives no protection, it only kills fleas on the cat.
Of course, it's more difficult to bath a cat than put some spot-on but I personally would give a try to this method if a had an allergic cat.

Have been reading and hearing that frontline seems to be losing its effectiveness but I am quite interested to know where people buy it from?

I tried effipro and it was useless

So as soon as it was safe I got the frontline combo direct from my vets and had a long conversation about it as its quite a bit more expensive from him than online.

His explination was that the stuff online is actually a diluted version?

Now yeah it could be that he's just trying to make sure he sells it and profit etc however after the effipro being completley useless and few weeks of really nice weather we ended up with quite an infestation

BUT after using the fronline from the vets (and the super dooper spray for the house ) 48hours later and they and the house are all clear!

So could it actually be that its down to the "online" frontline being actually of lesser quality and hence why its so much cheaper?

Could it be that the stuff you got online was frontline and not frontline combo? We had this not realising there was a difference and my parents' cat got fleas! You can buy frontline easily online but combo, like advocate, is a prescription only medicine

Hi - I've used the Bob Martin flea tablets and they're great, much better than the Johnsons 4 Fleas. Asda & Morrisions supermarkets sell them for around £6.00 for a box of 3.
I've never rated Frontline.

Please be very careful when choosing a flea/wormer for your cat .Most if not all over the counter products are at best useless some can be dangerous,read this link WARNING - Bob Martin Spot On Dewormer ,the problem is not just with the wormer,flea treatments are also considered to have the ability to harm.It is much better to go to your vet for treatments or at least to get a prescripion from them and buy on line.

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