" To put it differently, I'd say: "I need to remove that tick that is been biting me all day long." I wouldn't say: "I have to be free from that tick." And that's why I would use "rid of" with a cold, rather then "free" (despite irrespective of whether https://energygrantsuk.health.blog/2025/07/20/solar-energy-grants-uk-government-support-for-greener-homes/