Since Lily was diagnosed with a liver mass. I still have been using topical flea and tick, I rather not do that. I want to stop but don't want her to have any bugs. What do you recommend or have used that can help to put on her fur. I thought I heard Rosemary not sure if they sell sprays, I have fresh rosemary in garden. I am still giving her a heartworm pill monthly though, even though she has an illness I don't need her to get heartworm. Any recommendations for flea and tick that is organic would be great.