Wendy from Smithfield, Nc writes
After I sprayed my dog I noticed fleas were still alive around his rear. Does Petcor continue to work after it dries or do I need to spray again so soon because some fleas did not die?
Yes, Petcor Flea Spray does keep working after it has dried. Petcor will kill adult Fleas on contact, but continues to protect by preventing flea eggs from hatching for up to 30 days. You should continue to apply as needed to kill adult fleas found on your pet.
Answer last updated on: 11/12/2015