1, shepherd's purse belongs to the hairy things, specific to categorize, shepherd's purse belongs to the heat, hair wind to food, some allergic people can appear after eating skin fever, itching, dough and other uncomfortable reaction, generally in about 2 hours after stopping to eat can be subsided by itself, serious need to consult a doctor as soon as possible.

2, capers growing environment there are a lot of allergic components, such as microbes, pesticide residues, dust, etc., it is best to blanch before eating.

3, the consumption of chestnut is not everyone will be allergic, only allergic body will appear allergic reaction, once an allergic reaction need to stop eating chestnut, can drink a lot of water, while consuming vitamin C tablets or high vitamin C food, such as tomatoes, oranges, etc., can be appropriate to alleviate the allergy, the serious situation needs to be as soon as possible to seek medical attention.