My dog still has fleas after Frontline and baths. What now?
Flea infestations can be really frustrating to manage! It sounds as though you're doing all of the right things to manage this issue. However, in recent years, I have not found Frontline Plus to be as effective as it once was. Consider talking to your vet about switching to an oral flea preventive, such as Bravecto, Nexgard, Credelio or Simparica. (All are prescription-based, which is why you'll need to first talk to your vet.) I find these medications MUCH more effective at rapidly killing several flea lifestages, which helps to break the flea life cycle (adults lay eggs, which become larvae, then pupae, then adults, which lay more eggs). Consistently giving flea preventives is the best way to resolve a flea infestation. Over the counter oral medications like Capstar are great at killing adult fleas, but only last for 24 hours. K9 Advantix II is an over the counter topical option that works well, but isn't quite in the same league as the prescription orals. Also be sure to wash any blankets, pillows or bedding that is machine washable on the hottest setting allowable. Try to wash these things at least once a week. If all else fails, consult an exterminator to treat your environment. Flea baths are largely ineffective at treating fleas. Many of these flea shampoos cause skin irritation, so I would just try using a regular dog shampoo every few months to wash off any dead fleas or flea dirt. Also be sure to talk to your vet about checking a stool sample for tapeworms, as dogs can ingest tapeworm eggs if they eat infected fleas. I hope this helps and that all goes well for Atlas!
https://www.petcoach.co/dog/condition/flea-infestation-1/
Updated on September 23rd, 2025