Willow leaf tea is made of willow leaves, willow leaves taste bitter, cold, not recommended to drink for a long time, easy to hurt the spleen and stomach. Willow leaf tea has the effect of clearing heat and diuretic, penetrating rash and detoxification, can be used to treat cough and asthma, hot lymph (burning stinging pain obvious when urinating, accompanied by urinary frequency and urgency, small abdominal traction discomfort), stone lymph (discharging gravel when urinating, or urinating suddenly interrupted, urethral pain, lumbar and abdominal cramps unbearable), carbuncle gangrene (a kind of venomous sores, occurring in the surface of the body, the limbs, the internal organs of the acute suppurative disease), fire venomous joints and swollen pains, itchy skin and other diseases. Willow leaf contraindications and adverse reactions are not clear, it should be noted that the role of traditional Chinese medicine tea drink is limited, can not replace the use of drugs. In addition, willow leaf bitter cold, long-term consumption is easy to hurt the spleen and stomach. If you are not feeling well, it is recommended that you go to the hospital for treatment and use the medication under the guidance of a physician.