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You could, but there is no reason to. Derback is used to kill head lice, and there is no evidence that dogs can carry lice. If you intend to use it on fleas or ticks, well good luck. It likely won't work.
What will work is to rub your dog down with cut Oranges, lemons, limes, or grapefruit. It seems fleas and ticks hate citris, and citris is relatively benign for use on dogs. DO NOT use this home remedy on cats however.
What else can I help you with?
Do dogs use their appendix's?
Dogs don't have an appendix to use.
Why do you use the name dogs?
You use the name dogs because you just do.
When do people use guide dogs?
they'll use the dogs for the blinded
How do you use dogs and but in a sentence?
The dogs were barking but I ignored them.
Can you use dogs nose prints to identify dogs?
No
Are dogs idiodotic?
It is relatively unknown for dogs to use idioms.
How did the plains use dogs?
so the dogs can catch food
Do dogs use litter boxes?
No cause were stupid enough to give cats litter boxes and not dogs!
What is the name scientists use for all dogs?
Canine would be the name scientists use for all dogs.
Do dogs use sonar?
dogs do not use sonar. but if you mean ecolocation then no as well. but they do have incrediablely sensitive nose.
What words the police use to get there dogs attention?
Normally the dogs name
What alliteration can you use with dawdling dogs?
Dawdling dogs dawdle delightfully.
