Fleas rise to the top of your pet's coat as they die, so consider it a triumph if you start seeing more fleas at first, after treating your pet. If you’re still seeing fleas after application, it may be because your pet has picked up new fleas from the environment, which may include other pets, surfaces and outdoor areas. It may take up to 30 days to break the entire flea life cycle. Additionally, you should also treat sources of new fleas (i.e., carpet, yard, etc.) to ensure complete flea control.
My parents introduced me to these several years ago, and they seemed like the only thing on the market that worked without visibly hurting the pets, even ones with health problems. More recently, my husband and I have had problems with collars that simply don't work so well. They never seem to quite get rid of the fleas, and they stop working noticeably several months too soon. Not sure what to do next, because we tried another product and suddenly had a paralyzed pet. Seems like flea treatment, like the fleas themselves, go through a life cycle: they start off great, then stop working entirely or even cause harm.
Fleas were next level this year! Have one cat and it has not been this bad since 2016. We tried the non-chemical (cedar oil spray, flea traps, etc.) but it only put a dent in the numbers. Frontline does NOT work in Washington state anymore. Wasted the money on those topical treatments. Read positive review from other pet owners in our state and Seresto collars were recommended. Please note: Be ready to deal with an onslaught of fleas jumping ship in the first few days. I thought the collar was not working and then read the product sheet that comes with it and it talks about this. You could tell they were dying, as they were slow and did not jump so were easy to nab. We sprayed everything down with Wondercide cedar oil spray to finish them off. I can say we eradicated the situation within 5-7 days.
Have been getting these for my cats as they are allergic to fleas and they will lick themselves raw if untreated so I opted to get the expensive " reliable " brand to make sure that they get the protection they need, it worked great for 3 or 4 years and now this recent batch is not working straight out of the tin, could not suggest this brand currently and I will no longer be using chewy for my pets supplies
the last time i needed seresto in 2019 it worked havent had a flea since. got new kitten that brought in fleas. did everthing did last time ( bathed, washed all areas they are in. ) n still have pesky fleas. .not happy did the company send fake collars or did seresto change the formula??? way to expensive for it not to work at all. highly disappointed.