I have two dachshunds who are just over a year old. I have seen them scratching and saw a flea on one of them.

What is a good medication to kill and prevent fleas on my dogs?
Is this something I can buy in a store?

Thanks for any helpful advice!

Our cats have fleas and we’ve tried everything. Are there any real alternatives to Advantage? We have 5 adult kitties and 4 kittens, so advantage is cost-prohibitive. I’m allergic to flea bombs, but I haven’t reacted badly to flea powder, so I could sprinkle that liberally on the floor, if need be. Suggestions, anyone?

I live in Missouri. During what month is it ok to stop giving my dog flea and tick prevention medication?