I have been using Frontline. Your right the other flea control products are
minimally effective. Frontline is sold in pet stores in Ca. Otherwise I
think you can get it at your vet. It kills the fleas within 12 hours, and
lasts for up to 3 months. For the first 30 days it also kills ticks. There
are NO fleas in our house anymore. With 3 dogs that would never be
attainable with the other products.