" Basically, I'd personally say: "I would like to eliminate that tick which is been biting me all day long." I wouldn't say: "I must be free from that tick." And that is why I might use "rid of" with a cold, as an alternative to "free" (it does not https://medium.com/@GreenHomesGrant/what-you-must-know-before-applying-for-eco-grants-df393d4ba597