Adult Fleas feed on the blood of humans and animals. The larval stages live in the nest of the host and feed on skin, feathers and, most importantly, the blood-rich faeces of the adult flea. In the UK there is little evidence that Fleas spread disease. However Flea bites can cause intense irritation around the central bright red spot. Different people react differently to a bite, both in terms of degree of reaction and time taken to react. We stock insecticide sprays and aerosols that control fleas in domestic premises.