I HAVE had mild reactions to the calcium hydroxide (the one from the chemical shop, where you got yours, Maya sent me some). I emailed them and asked about hygiene etc but they didnt get back to me. Email them and see if they reply to you.
I had mild breathing problems (sounds worse than it was) plus twinges around the liver area, again nothing really bad. Also felt a bit weird in my head actually but one thing it does seem to help with is blood sugar. I used one or two teaspoons of diluted CH. I'm very sensitive to things anyway (dealing with mercury, and think I still have leaky gut probs, plus dysbiosis). Not sure if I'll carry on with it, I'm not that comfortable taking it to be honest but wanted to experiment and its very convenient to take. I dont know whether that fact that it's inorganic makes any difference to the absorption/safety factor.