Natural antihistamine

I noticed on another message that you said chamomile is a natural antihistamine.My daughter sleeps horribly at night because of waking up to itch.I also heard of quercitin (which didn't work to well for her)and pure Vitamin C powder. I tried the vitamin c and she itched worse and had diahrea. I don't know if I should of tried it longer and it was just cleaning her system out.Any suggestions?I have to be careful of what I use because she is on a constitutional remedy right now and I don't want to interfere with that.

Also I have been trying the 1 bath + 1 wipe down a day and applying the cream only at those times. It is working well. Were still working on a purifier but I use bottled water when I wipe her down. And she only drinks bottled water. Tweet