OMG no - don't use those spices in a bath bomb because they are even worse in a bath bomb than CP soap..... think extreme pain, burning and stinging.
Try not using any water in your bath bombs. I use Sweet Almond Oil only, plus a little FO and then spritz with Witch Hazel until they will hold together when I squeeze it together. I live on the west coast (BC Canada) right on the ocean so I know about humid... LOL
Do you have a nice recipe that you wouldnt mind sharing?