flea collar

Hello, I have recently bought a flea collar for my year old Miniature Schnauzer and from my searches on the internet, it seems that flea collars do more harm than good. The active ingredient is propoxur (10%) and flumethrine (2.25%), according to the box it came with. I haven't clipped it on my...

If you have used or are using the 'Seresto' Flea- and tick collar for your dog. can you please tell me what your opinion is of how it works? What I am worried about is - do I have to wash my hands every time I have petted our dog? She sleeps on our bed (I know, bad but very comfortable :o )...