" Quite simply, I'd say: "I would like to remove that tick which is been biting me all day." I would not say: "I must be free from that tick." And that is why I'd use "rid of" with a chilly, rather than "free" (it does not matter no matter https://freeinsulationscotland.news.blog/2025/07/20/home-energy-scotland-grant-free-insulation-what-you-need-to-know/