Why Do Flea Bites Itch? How Do I stop it?
We may earn a commission when you click and buy from Amazon.com. The legs of fleas have strong claws and proboscis (tiny needles) that’ll help the pest bite the skin of the hosts such as cats, dogs , and even humans. **Why do flea bites itch? Well, fleas will bite humans and pets where they’ll secrete some saliva into the blood - which the host’s body and blood take as an allergen. ** **The immune system will send histamine to counter the allergen (flea saliva) and thus the chemical triggers itching and swelling. ** ...