Part of the mechanism of Lyme disease seems to be that it makes your body have a terribly hard time running up a fever. In Chinese medicine it's a very 'damp cold' sort of a disease. Fevers kill everything associated with Lyme: the Candida, the Bartonella, the Borrelia, the other parasites and they help you to sweat out the toxicity. Fever would seem a very natural response to Lyme disease.
But the opposite seems to happen! When my symptoms flare up I always feel the cold very intensely, my energy levels drop, my core temperature goes down a bit and I just can't for the life of me seem to work up a sweat.
For me, Saunas are the best thing for Lyme. Your aim with treatment should be to get your body into enough of a physical condition to be able to tolerate long sessions in the Sauna. You will sweat out all the ammonia and other neurotoxins and start to kill off everything in your body. Preparing for the sauna means lots of activated carbon for detoxing and chlorella for detoxing and essential nutrition. It means plenty of clean hydration: bottled water with sea salt. And I find when I done in the sauna a light meal of vegetables, rice and a berry smoothie really helps to support my body to do the work of processing all the garbage.
If your sauna sessions are working you will be working up a vicious fever in the sauna. You will be sweating like crazy, literally dripping like a shower, and it will absolutely stink of ammonia. It's like a real sickness fever! Saunas give your body the kick it needs to support the natural fever healing process.
Saunas are the best thing, from my experience. They are hard work and you need to train yourself up to handle them. It's like running a marathon and it's not something to be taken lightly. But they give more tangible benefit in Lyme Disease treatment than any other single method, drug or herbal remedy in my experience. If you can get yourself to the Sauna, you're most of the way out of the tunnel.