Originally Posted by
ironwood
If you are going on a tour and are concerned about ticks and Lyme disease, maybe you should talk to your doctor about a prescription for a prophylactic dose in case you are bitten by a tick. I don't know if he will write one, but it can't hurt to ask. And it might save you from a longer treatment of oxy later.
Prophylactic antibiotics is a poor option. Tick bite and subsequent Lyme disease is a relatively low odds event. However overuse of antibiotics is a real problem, and a poor trade off.
Odds are it won't buy you much in the way of prevention or lower doses later, because dosing to treat Lyme is pretty high and no reasonable doctor is going to do that unless necessary.