I've treated my 12 year old cocker spaniel for fleas over the years. Usually in late summer and early fall I see a flea or two so I treat using Revolution. This year I started treating in May because I noticed a flea. I've treated every month since because she still has fleas. I've even shortened the application time down to 3 weeks this month and I still can't them under control.
Anyone got any ideas? Bad year for fleas?