There are also many natural flea remedies. My Bella is horribly allergic to flea bites....My vet says worst he has ever seen. She vomits, gets open sores on her back not from itching either she cannot reach her top back
Its bad. I do not use chemicals on either of mine (not judging those who do Its just my preference). Here are a few I recommend.
Organic earth,
Repellents
Hope that helps!