I have a small inside dog and my yard is surrounded by big outside dogs. She usually doesnt go out to play but of course goes out for potty a few times a day. She is bathed weekly with flea shampoo but this doesnt seem to help her from getting the fleas. So is not infested but they seem to love her and NEEDS to have the bath every week. I have tried some of the products made for the lawn and nothing seems to work. I need help!! She bites and digs herself raw.