The first, cilantro root for chronic urticaria, take a dozen cilantro root washed and cut, boiled for 5 minutes and mixed with honey to eat and drink, the redness, swelling, itching and other symptoms of urticaria has a better therapeutic effect, should be drunk for 3 days in a row, once a day. The second, leek for chronic urticaria, with fresh leek juice applied externally, 2 times a day, 1 week of continuous external application, the fresh leek crushed, with a container in the refrigerator can be used for several days. The third, chervil for chronic urticaria, chervil 500g, wash away the sediment and shake dry water, each time grab 3-5g in the affected area and rub, cool and refreshing, 1 time each day in the morning and evening, only 3 times to heal.