Will burning paper into ashes and soaking it in water for a long time have an effect on the body?

After the paper is burned, what is left is some unburned carbon, and most of the rest is oxalic acid. Cinnabar itself is a Chinese herbal medicine, which helps to clear fire and detoxify, and can also neutralize the bad substances in paper ash. The premise is that the toilet paper is added with cinnabar, not with ink or other pigments. When burning symbols, put a bowl of water under it, and then the ashes just fall into the bowl. It's nothing to drink one for a few days, just don't eat it as a meal.

It won't be poisoned, but if the paper is coated with heavy metals, it may cause diarrhea. Don't drink this kind of thing in the future.