Re: Ticks and Lymes disease
No. No. No. No.
Never ever use chemicals on ticks. They may well hate it and fall off but they may also disgorge (vomit) stomach contents back into your own blood stream as they do. Even if the eww factor of that isn't enough for you the increased chance of infection and Lymes should be.
Me? Not a hippy - just a trained outdoor instructor and wilderness medic.