How can you tell if flea spray has failed or just pulls window? Flea sprayed half house approx 4w ago and still finding fleas. Not loads but there is still a presence. No fleas on cats. Have sprayed other half of house start of this week.
Should I respray the first areas or will we be covered? Used RIP fleas, cats were treated with activyl (I think!) approx 5wks ago then a 3mth spot on of bravectyl (?) A week past Monday. All products from vets.
Many thanks.