FRONTLINE Tick and Flea Spray  Treatment for Pets provides long-lasting, effective control of fleas and ticks on your cat and dog. FRONTLINE Tick and Flea Spray  is ideal for severe existing flea and tick infestations. FRONTLINE Tick and Flea Spray  can be used on puppies and kittens 8 weeks of age or older and provides a quick and effective way of eliminating large flea and tick infestations already on your animal. FRONTLINE Tick and Flea Spray  is ideal for reducing and controlling fleas and ticks in multi-pet households. Great for the initial treatment of flea allergy dermatitis (FAD).