" Quite simply, I might say: "I want to remove that tick that is been biting me all day long." I would not say: "I have to be free from that tick." And that's why I would use "rid of" with a cold, instead of "free" (despite irrespective of whether https://freeinsulation.food.blog/2024/09/13/4-steps-to-apply-for-government-grant-for-solar-panels/