Where to put flea treatment on a cat

By Leigha

October 13, 2026

Where you put flea treatment on a cat matters. Spot on flea treatment should only be applied to the back of a cat's neck, at the base of their skull, unless otherwise instructed. This is because cats can't lick this spot and reduce the efficacy of the flea treatment.

Flea treatment for cats is applied on the back of the neck, directly on the skin. This is to ensure the flea treatment solution is absorbed by the cat's skin oils to effectively kill fleas. Applying cat flea treatment on the skin at the back of the neck, not on the fur means the flea treatment is more likely to work quicker to get rid of fleas.

After applying spot on flea treatment to a cat, let it dry for 48 hours so that the treatment can be 100% effective. Don't let your pet get wet in the rain or go in the bath.

Want to know How To Apply Flea Treatment To A Cat? Read our step-by-step guide and watch our tutorial.

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Where to put flea treatment on a cat