" To Paraphrase, I'd personally say: "I need to get rid of that tick that's been biting me all day." I would not say: "I have to be free from that tick." And that is why I would use "rid of" with a cold, instead of "free" (despite irrespective of https://greenhomesgrant.travel.blog/2024/09/13/what-you-must-know-before-applying-for-eco-grants/