Hi, I'm also from Louisiana (Lake Charles). I use an Oatmeal shampoo and bathe once a week. The topical flea medicine I use lasts for one month. I assume it absorbs into the skin and then into their systems. So after a couple of days she's okay to have a bath. My vet said when and IF she gets to five pounds there is an oral pill she can take for fleas. Hope this helps
Oh and welcome