Comfortis flea-killing chews tastes of beef and contains Spinosad – a new ingredient safe for dogs and deadly to fleas. Most flea control products are used spot-on to spread on the skin and then kill the fleas within 24-48 hours. Comfortis works within 30 minutes and all fleas are dead within 4 hours. One chew acts for one month – so your dog is protected against fleas even while enjoying regular swims or baths.
Comfortis is also effective in treating allergic dermatitis caused by flea bites. Dogs that are allergic to flea saliva can itch for up to 2 weeks if a single flea bites them. Comfortis will come to the rescue. Dogs with pollen and food allergies are often more sensitive to flea bites, so Comfortis will definitely bring them relief too.