The tick that causes lyme in the us is called a deer tick. It is very small. Is that the tick that is causing problems in AUS? If so, was the tick that bite you on your brow the size of a poppy seed, Sesame seed or larger. If it was larger than a sesame seed and you were in the us, I wouldn't even get the tick tested or be too concerned about it. If it was small like a poppy seed I would be very suspicious.