As the name implies, Catnip was named for the effect it has on cats, both wild and domestic. A specific compound in Catnip attracting most felines repels mosquitos, suggesting cats rub their faces on Catnip to avoid being bitten. 

Traditionally Catnip was used as an ointment for skin ailments. Although it is not used in this way very often, Catnip is a good ally to help fight skin infections.