According to Buhner there are three main herbs for lyme (known as his core protocol), you can find descript
ion here
buhnerhealinglyme.com/the-protocols/ I recommend reading Buhner's book about
Lyme and herbs, where you could find detailed info how to use those herbs. As I remember they are quite safe so one can take them all the time for years in proper dose.
Another solution are essential oils used topically, in my opinion they are very effective in killing various bacterias and fungus with no side effects. The cheapest way is to buy a lots of them and make your own mixes with some plantbased oil.