thanks everyone
is it safe to apply Stronghold every month, perhaps for several months ? don't think there are any fleas or worms to be zapped in any of them
or would it be better to ask the vet for a topical treatment for mites for Trigger and Tiffany?
i'm so tempted to creep up on Tosker when he's sleeping in his kennel, usually with the back of his neck facing out - but he's come so far up to now that it just isn't worth risking undoing all the good work for a few mites - his ears aren't full of gunk so I don't think the problem is urgent - not yet anyway
I'd risk it if I had someone to help, but he would take off immediately if a stranger came anywhere near him