Simplest way is simply create a tonic, put 1/2 bunch fresh cilantro, trim 1/2 inch off cut stem ends and discard then put washed stems and leaves and about 1/2 cup of water in good blender (Ninja Professional 1000w is a good value and excellent at pulverizing and liquifying). Chugging it down holding your breath will minimize the taste. I've tried adding fruit and so on but there is no way to disguise the taste.
I feel such sympathy for all of you still suffering. As I have mentioned a group of us boggled about our results trying cilantro and it helped about 40% of us. I was one of the lucky ones, still am.