How does Wart Removal work? Warts come in many variations and on different parts of the body but wherever the wart may be, the process of the treatment is the same. I prefer to use diathermy for Wart Removal, this works by drying the wart out and targeting the virus in an attempt to kill it. This gentleman presents a filiform wart just below his bottom lip which was causing him distress and was equally uncomfortable as he kept catching it when shaving and also when sleeping. We treated this wart twice, the first time we had a great result but there was still a small part of the wart