I have a male cat that is around 6 months old, and he just started getting fleas this spring/summer. I have been too scared to try something like Frontline (for example), because I have read that the topical liquid treatments can be like poison, and make a cat very sick, so I thought that getting a Seresto flea collar was the safest option for my cat (after reading all of the great reviews about the collar). I would like to add that my cat hates water, and will not allow me to give him a bath (even just putting a little bit of liquid on him at a time makes him very upset). I wanted to give him a good Dawn bath, and tried a few times, but he will just not allow me to give him a good bath. Anyways, I had high hopes that the Seresto flea collar would get rid of all of his fleas (and it noted that is starts working after 24 hours), but it has now been around 3 days, and my cat is still itching, scratching, and biting at what I imagine are fleas biting him. I no longer see any fleas crawling around on his face like I did before, but he still seems to be suffering with a flea problem. By the way, I am currently fighting a flea problem in my apartment, and I have a lot of carpet. I bombed the place about a week ago (using 3 Hot Shot foggers that were specifically for Bed Bugs, and Fleas, that I found at Walmart), after vacuuming really well, and cleaning up as best as I could, and that has not helped my flea problem in the least. They have been eating me up, so I know that I have a really bad problem, and the Seresto flea collar has not seemed to give my cat any relief from the fleas biting him. I tried to make the collar as tight as possible (following the instructions), without choking my cat, but today it became loose a few times, so I tightened it up just a little tighter. I am afraid that this flea collar is not doing him much (if any good), other then maybe just keeping the fleas away from his face. My question is, is the Seresto flea collar supposed to work just as well as the topical treatments (like Frontline for example)? I purchased the collar at a super walmart, but I am afraid that they have have a no return policy on an item like a flea collar. It just does not seem to be working, and I am really upset, and worried about my cat. I do not want to risk using a treatment that might make him deathly ill, but on the other hand, I really want him to be relieved from this flea problem. I also wish that I could find a solution to getting rid of the flea problem in my home. Thanks for any advice.