What is the origin of drinking realgar wine on Dragon Boat Festival? Harmless to human body?

1, the origin of drinking realgar wine on Dragon Boat Festival:

Legend has it that after Qu Yuan threw himself into the river, an old doctor brought an altar of realgar wine and poured it into the river to prevent the dragon from eating Qu Yuan's body, saying that it would stun the ichthyosaur and protect Qu Yuan. After a while, a dragon really floated on the water. So, people pulled the dragon ashore, lacing and peeling it, then wrapped the dragon tendon around the children's wrists and necks, and then wiped their seven orifices with realgar wine, thinking that this would protect the children from insects and snakes.

2. Realgar wine: The main chemical component of realgar is toxic arsenic disulfide, which becomes arsenic trioxide through chemical reaction after heating. As we all know, arsenic is a highly toxic substance with great toxicity. If people take it by mistake, 5 ~ 50 mg can cause acute arsenic poisoning. Poisoning is characterized by nausea, vomiting, abdominal pain, diarrhea or watery stool with blood, accompanied by liver, spleen and renal function damage, blood pressure drop and circulatory failure, and even central nervous system paralysis, confusion and coma.

3, external use is not suitable for large-scale rubbing and long-term continuous use.

4. First aid after poisoning: raw licorice 1 serving, 2 mung beans, and decocted with concentrated juice frequently. And go to the hospital in time.