" To put it differently, I would say: "I would like to get rid of that tick which is been biting me all day." I wouldn't say: "I must be free from that tick." And that's why I'd use "rid of" with a cold, rather then "free" (it does not https://ecogrant.sport.blog/2024/08/21/how-to-apply-for-solar-panel-grants-scotland/