Since I became aware of this infestation I have tried a whole list of treatments - as I have most people have & none have done what this is doing & like a mentioned so fast. So far I am not having any side effects. I have started to take a tablespoon of diatomaceous daily to help clear my body up as the die off is full on.
I said to my sister who has supported me these 2 years that when I find a cure I will feel the effect straight away & by God's grace that's what is happening for me.
I am going to try Tetley's brand to see if there is a difference, but like I mentioned before the store own brand that I tried didn't have the same effect.
The side effects I had from Green & Red Bush Tea was just feeling very unwell in myself - not sure what it was, but the feeling was the same as when my Thyroid was going crazy. It was only when my Dr was asking me if I had started taking any supplements etc that I remembered about the tea & as soon as I stopped it within days I felt better.
In answer to your question about the essential oil - I just use it straight on my feet & tummy (my skin is like leather now lol) - it isn't affecting me & is helping already with the infestation in my feet.
If you want to ask anything else feel free to.
BTW I had a bath in the tea also - just boiled up about a dozen bags to get the fullness of them out & poured in the bath -had a soak for about half an hour - nothing moving on my skin afterwards - just dropping off dead.