The efficacy of Ichihuanghua is to detoxify and eliminate swelling, to relieve wind and dissipate heat, and is used to treat signs of heat toxicity and wind-heat invasion. It is bitter and pungent in flavor and cool in nature. Its effect of clearing heat and removing toxins (removing heat and toxins from the body) can be used to treat heat and toxin congestion followed by milk moth (related to tonsillitis in Western medicine), laryngeal paralysis (redness, swelling and pain in the pharynx, or dryness, with a foreign body sensation, or itchy throat and difficulty in swallowing), carbuncles, swellings, sores and boils, and so on. Its function of dispersing wind and dissipating heat (evacuating externally felt wind-heat evil) can treat colds after feeling wind-heat evil. It can be used both internally and externally. Externally, it is usually applied to the skin by pounding the fresh flowers. Pregnant women should be careful to take a branch of yellow flowers, can not eat spicy and stimulating food during the period of taking. Take the drug to the doctor’s guidance.