" Put simply, I'd say: "I need to eliminate 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'd personally use "rid of" with a chilly, in lieu of "free" (it doesn't matter whether https://www.reddit.com/user/ecograntscheme/comments/1fffzsl/4_steps_to_apply_for_government_grant_for_solar/