“…SIR, — Further to Bradley Viner's letter ( VR , October 21, 2006, vol 159, p 572) concerning the research on tick removal (Zenner and others 2006), I strongly agree that killing the tick with, for example, fipronil and leaving it in situ results in the least damage to the host. I have been using this method for more than 15 years and have never had an animal return with skin lesions; however, I have treated many animals with abscesses or granulomata following attempted manual removal by owners or other parties.…”