Seeking Natural Flea Killer Shampoo recipe

[laurazone5]

It literally only takes one flea and they lose their minds.
I used apple cider vinegar in their bath water, and that does work, but does anyone have a recipe for a spray to put on furniture / bedding and a shampoo or lotion to put on the pups.

Bella has extremely sensitive skin......
Thank you for your help

[Maura]

Lavender. Get a high quality essential oil, dilute it, and spray. Give the dogs a light mist before sending them outside. It is calming for the dogs, but repels fleas and other insects. Peppermint is even better, but it is lethal to cats.