https://kittynook.com/blogs/ki....ttynookcorner/its-fl
When we're up north, in the cool weather, I use the Frontline as soon as a month. But in Florida, every 3 weeks is advised. I found out that the tough method the very first winter we invested in Florida; I took Gracie to the veterinarian since she had hotspots, was scratching constantly, and was losing hair. After the vet offered Gracie a cortisone short to stop the inflammation, she told me Florida fleas require Frontline treatment every three weeks. Since I've been