It can be divided into 5 types: Patients with wind-heat type may suffer from red skin papules induced by hotness and resolved by coolness, hot feeling of skin lesions detectable by palpation, worse in summer.

patients with wind-cold type may suffer from white skin papules induced by coldness or blowing wind and resolved by warmth, worse in winter.

patients with damp-heat pathogens in the stomach and intestines may suffer from abdominal pain, mental fatigue, poor appetite, abnormal bowel movement or vomiting during the appearance of skin lesions.

patients with deficiency of Qi and blood may suffer from repeated appearance of skin papules induced or aggravated by tiredness.

patients with disturbance of Chongmai (thoroughfare vessel) and Renmai (conceptional vessel) may suffer from dysmenorrhea and skin papules appearing a few days before menstruation and disappearing right after menstruation.

Recipe 1: Skin of a white gourd harvested in late autumn 20 g, yellow chrysanthemum 15 g, Chishao (red peony root) 12 g and a small amount of honey.
Administration: A decoction of the above herbs is drunk as a tea once a day for 7 days.
Indication: This tea can expel wind and clear .heat pathogens to treat urticaria of wind-heat type.

Recipe 2: Mugua (Chinese quince fruit) 12 g, Tufuling (glabrous greenbrier tuber) 30 g and an adequate amount of vinegar.
Administration: A decoction of the above herbs is drunk once a day until the disease is cured.
Indication: This recipe is used to treat urticaria due to damp-heat pathogens in the stomach and intestines.

Recipe 3: Mugua (Chinese quince fruit) 60 g, fresh ginger 9 g and vinegar 100 ml.
Administration: The above materials are boiled in an earthenware pot until the vinegar is almost boiled away, and the Mugua and ginger are taken orally, twice a day for a week.
Indication: This recipe is used to treat urticaria of wind-cold type.

Recipe 4: Red date 250 g, one pig's pancreas and an adequate amount of table salt.
Administration: The pancreas is washed clean, cut into small cubes and fried in a pot. The fried pancreas is then boiled with dates and salt to make a soup for oral intake, twice a day for half a month.
Indication: This soup can enrich Qi and blood to treat urticaria due to deficiency of Qi and blood.

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Source: http://www.tcmadvisory.com/