He added: “Bite marks are usually around the ankles or legs, often leave small red spots which are itchy.
The RSPCA says that a flea can live from between 14 days up to one year, with the female laying up to 50 eggs a day, although they can survive without a host for many months.
“The population of fleas seems to have grown rapidly in recent years, but the risk of an infestation could be bigger than ever this summer.”
Hordes of super-fleas with giant penises could soon been invading Merseyside homes because of the wet summer.
They hatch in a few days and can live for several months so the population soon explodes.