" Quite simply, I'd say: "I need to eliminate that tick that is been biting me all day." I wouldn't say: "I have to be free from that tick." And that's why I might use "rid of" with a cold, rather than "free" (no matter whether of activation energy alternate https://grantsforinsulation.blogspot.com/2024/09/how-to-uplift-your-lifestyle-with-eco-4.html