What is the best insecticide to kill bed bugs?

If your dog has fleas I wouldn't suggest you use insecticide to get rid of them as it could harm your dog.

You can easily obtain flea treatment shampoos and preventative measures to help stop them reappearing from any good pet store.

Regularly grooming your dog will help too as you can stop any fleas which you do find.

Get rid of them quickly using the appropriate treatment as fleas can lead to other dog health problems such as hair loss if the dog continually scratches in an attempt to find relief from the irritation.