Can A Flea And Tick Collar Make My Dog Sick?

Can A Flea And Tick Collar Make My Dog Sick? When flea and tick collars are accidentally ingested or applied to pets inappropriately, they can result in severe clinical signs of the central nervous system (e.g., lethargy, walking drunk, dilated pupils, seizures, coma), gastrointestinal system (e.g., drooling, vomiting, diarrhea, bloating), and cardiac system ( …