" Put simply, I'd personally say: "I need to remove that tick which is been biting me all day long." I would not say: "I have to be free from that tick." And that's why I might use "rid of" with a chilly, instead of "free" (it doesn't matter no https://ecograntscheme.health.blog/2024/08/21/how-to-apply-for-solar-panel-grants-scotland/