Sounds like your problem could be severe dysbiosis ... with maybe some bad microorganisms in your colon, and those may get flushed out at every flush, but their numbers may grow large after some time .... and so you get the same symptoms again ...
With Acne and hives .... you may react to your favorite foods like fats, grains or milk or Sugar or fruits like strawberries or mango or raspberries or oranges .... or even natural honey or butter