Cat (rescued, neutered male) is an outdoor cat and picks up fleas. He is allergic to their bites and becomes all scabby so we have to keep on top of his flea treatment. He hates the one the vet has given us. it’s in a little squeeze tube and it smells really strongly. He struggles and fights as soon as you get near him and the best we can do is get it on his fur, not his skin so ineffective. Other option is injections but again, he hates the vets and fights (he’s a big, strong cat) and they have to put him in a crush cage to administer the injection which really stresses him.
What can we use that doesn’t smell awful and which he will let us apply?