Rubella (rubella, German measles) is a common acute infectious disease caused by rubella virus. It is also called wind sha, shazi, etc. It is a common respiratory infectious disease in children. Rubella is named because the rash of rubella comes and goes quickly, like a gust of wind. Rubella virus has very weak vitality outside the body and is as contagious as measles. It is generally transmitted through coughing, talking or sneezing. It is characterized by fever and rash all over the body, often accompanied by swollen lymph nodes behind the ears and occipital area. Because the systemic symptoms are generally mild and the course of the disease is short, the disease is often considered insignificant, but in recent years, severe cases of rubella outbreaks have been reported repeatedly. If a pregnant woman is infected with rubella, it will seriously damage the fetus, and children and adults can get sick. Traditional Chinese medicine calls this disease rubella, wind sha, and hidden rash. It is believed that it is caused by the wind-heat evil of the time, which occurs on the skin surface.