Spot-on products are applied along the skin at the back of the neck. The steps are few and handling demands are low, which suits most owners doing it at home.

Sprays require parting the coat, applying evenly and avoiding the eyes, nose and mouth. Coverage is broader, but a cat that will not cooperate makes the job difficult, and dose and distance must follow the label.

Choice depends on weight, age and health. Suitability for kittens, pregnant cats or cats with broken skin must follow the product label and veterinary advice.

Frequency and ingredient rotation should not be increased on your own. Follow local disease risk and veterinary guidance to avoid duplicate dosing.