Scarlet fever is an acute respiratory infection caused by group A hemolytic streptococcal infection. It is characterized clinically by fever, pharyngitis, a diffuse bright red rash over the body and marked desquamation after the rash subsides. A small number of patients develop heart, kidney and joint damage as a result of metaplasia. It is more likely to occur in children under 10 years old. The disease is caused by the acute seasonal disease of Gua Sha, which is caused by the feeling of Gua Poison and Epidemic Evil. The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things. The disease can occur throughout the year, but it is more common in winter and spring. The disease can occur at any age, especially in children aged 2-8 years.