Me and my wife did 2 grams of Coke on a Friday. She only had maybe half a gram if that, I snorted the rest all night. And she became really itching starting at the hands and feet, now it's all over. What can help her relief this or how long will this last? We've only done Coke a few times. No extensive use or anything. It's not been till Monday night and she can't sleep because of the itching. Please help