" To put it differently, I would say: "I need to eliminate that tick that is been biting me all day long." I would not say: "I need to be free from that tick." And that is why I might use "rid of" with a cold, rather than "free" (it https://ecograntsuk.blogspot.com/2024/09/how-to-uplift-your-lifestyle-with-eco-4.html