Drinking too much cornhusk tea is usually not harmful to the body, but for some specific groups of people and drinking too much, it may aggravate the burden on the kidneys, and symptoms of water intoxication such as headache, mental disorders or slow heart rate may occur. Usually drinking cornhusk tea is not harmful to the body, but each time the tea to 3-5 grams is appropriate, the total daily amount should not exceed 2000ml. Especially avoid drinking a large amount in a short period of time, for patients with renal insufficiency, it will not only aggravate the burden on the stomach and intestines, but also increase the burden on the kidneys, headache, mental disorders, disorientation, ataxia, epileptic seizures, drowsiness and agitation alternating to coma and other symptoms of water intoxication. Therefore, although traditional Chinese medicine believes that cornhusk has the effect of promoting water retention and swelling, and promoting dampness and yellowing, cornhusk in water has a limited role, and can not replace the treatment of drugs. When the body happens to be unwell, should first go to the hospital for examination, clear cause of the disease under the guidance of the doctor treatment, such as corn husk treatment, but also under the guidance of the doctor can be.