" Basically, I would say: "I want to remove that tick which is been biting me all day long." I would not say: "I must be free from that tick." And that's why I'd personally use "rid of" with a cold, rather then "free" (despite regardless of whether of is https://ecograntscheme.video.blog/2024/08/21/how-to-apply-for-solar-panel-grants-scotland/