If a cat is scratching more than usual, chewing its skin, or moving around more often than it typically does, the animal may be dealing with fleas. One of the most effective ways to get rid of fleas is with spot-on treatments - insecticide drops that are usually placed between the cat’s shoulder blades. Through its natural grooming process, the cat will spread the treatment over most of its body.
While this powerful treatment can usually kill fleas and eggs, older cats or cats in poor health may not tolerate it well. In these cases, veterinarians recommend a multiphase approach with oral medicines that disrupt the flea life cycle by preventing them from reproducing, and direct methods such as flea shampoos and flea combs to rid cats of the existing infestation.