Folly,
I respectfully disagree. Who told you that? In my experience, as a person strongly allergic to tick bites, who gets a large and painful local inflammatory response if ticks are not removed very promptly, when I use vasoline, I get little to no reaction to the bite, compared to a very significant and painful swelling if I remove the tick with a standard tick loop or with tweezers. This local response can last for a few days, in my case, so I am very anxious to avoid it. We keep vasoline in the car as well as in the house. My understanding is that it takes quite a few hours for a tick to inject lyme's disease into the host, but it seems I am sensitive to other things in the tick. Some ticks, larger wood ticks, are very easy to remove with a tick loop, the smaller ones are very difficult to remove and one often leaves the head in the skin. Fortunately, our chickens and ducks seem to be eating all our ticks, so it is far less of a problem this year!