My big cats get stronghold once a year maybe and the birmans not at all. The big cats are outside most of time during summer but Sasa will get some at vets cos she may have earmites again, but usually plump fdor spot on wormer and both cant be done at once.
Fleas dont have to bite with stronghold, so good for cats with flea allergies.
We dont have fleas here and we had a couple on Franta about 3 years ago so all cats had stronghold but dont believe in dpoing lots of spraying and spoton cos dont thi nk its goog for the cats.
I have a lamp thing goping back to when I had Kocka 15 years ago, cos was infested with them and they caught loads but that cos they were hopping around everywhere. I was a new cat person back then and tried the shop powders and everything to no avail.Eventaully went to vets and he sprayed her and gave me a house spray, cant remeb er whichh one but that all worked and we stayed flea free for next 1o years despite all the cats that popped through the flat............I didnt use flea stuff on Kocka very much either but went from Advantage I think, to stronghold cos ahe had anallergy to flea bites.
It also worked for her ear mites.