A 17-year-old living with a busy single father needs to handle a flea infestation alone, without vet access or the ability to remove cats from treated areas, and seeks safe, effective OTC products for

A 17-year-old living with a busy single father needs to handle a flea infestation alone, without vet access or the ability to remove cats from treated areas, and seeks safe, effective OTC products for the home and cat tree.