Tick-Bite First Aid

http://www.vetscite.org/publish/items/007035/index.html

Excerpt:

They come out in the spring, and each year they spread further — the
ticks. Thirty percent of them transmit borrelia pathogens, the causative
agent of Lyme borreliosis that can damage joints and organs. The disease
often goes undetected. In the future, a new type of gel is intended to
prevent an infection — if applied after a tick bite. For years, Mrs. S.
suffered from joint pain and headaches. After an odyssey through
doctors’ waiting rooms, one doctor diagnosed Lyme borreliosis — an
infectious disease transmitted by ticks.