" To paraphrase, I might say: "I want to get rid of that tick which is been biting me all day." I wouldn't say: "I must be free from that tick." And that's why I'd personally use "rid of" with a cold, as opposed to "free" (regardless of regardless of https://energysavinggrants.home.blog/2025/06/19/empower-your-homes-efficiency-explore-the-eco4-grant-revolution/