" In other words, I'd say: "I need to get rid of that tick that's been biting me all day long." I wouldn't say: "I must be free from that tick." And that is why I might use "rid of" with a cold, as opposed to "free" (despite irrespective of https://eco4grants.movie.blog/2025/06/19/future-proof-your-home-comfort-discover-energy-grants-uk-today/