" Put simply, I might say: "I need to get rid of that tick that is been biting me all day long." I wouldn't say: "I need to be free from that tick." And that's why I would use "rid of" with a cold, as opposed to "free" (despite irrespective https://freehouseinsulation.blogspot.com/2025/06/build-greener-future-make-most-of.html