There are plenty of cat flea treatments which you can buy in your local shops but probably not all in the same one. However, if you buy pet medication online you can check out all the alternatives from the comfort of your own home.
Cat flea protection is an absolute must if you don't want your can and your home to become infested. Not only is an infestation bad for the health of your cat but contrary to popular myth, cat fleas do bite humans too. If you let fleas get out of control you will find them hopping around in your carpets and all your other soft furnishings and once that happens, you will probably need to employ a professional pest control person, leading to expense that you can well do without.
Anyway, things needn't come to can because cat flea protection is easy to buy and quite easy to administer.
Of course, you could use a traditional flea collar but my vet always says that collars of any kind are dangerous for cats. This is because if the collar gets caught on a tree branch or in undergrowth it can strangle the cat. Elasticated collars are also bad as they can ping back and break a cat's jaw; so collars really should be avoided.
This leaves spot on cat flea treatment, Frontline probably being the best known of these, flea powder or a flea spray.
If you want to use flea powder, you need to make sure that it's spread all over the cat's fur and worked it. This treatment needs to be repeated every couple of weeks and you need to have a very patient cat to be able to administer it.
I used to use an aerosol spray which came in an orange can but my cats learnt to recognise the can and they would run at the sight of it. When the reached a closed exit door, I would hastily run my finger the wrong way along the fur on their back, use the spray and open the door fast, so that they could make an escape. This was effective but deeply unpopular.
I have also tried a pump action spray which my husband bought by mistake. It was impossible to hold any of my cats still to undergo this so the mostly unused spray was donated to a cat rescue charity.
My favourite is a spot on cat flea treatment, Frontline being the most effective. It protects against ticks as well and seems to last longer than Effipro, which is another popular spot on cat flea protection. However, that's just a personal choice.
If you want to buy pet medication online, it's worth checking out both effectiveness and price before you purchase. Read the reviews and choose whatever seems best value for money while protecting your pet and your home from the dreaded fleas. The prices are very reasonable online compared with vets' prices.