My Dad works for the county, and they took a class in the spring about ticks and other work hazards. They said you are not to use any fire or chemical to remove ticks. This causes the tick to spit or vomit the blood back into your system. This is what causes Lyme disease. They told him you are to pull the tick out with tweezers or your finger, and not to worry if the head stays in you body. Just make sure head get desolved and you don't get infection.