The human face is not only a stage for the performance of the seven emotions, but also a window to reflect the diseases in the body. Therefore, the examination of the face is an important and easy way to detect diseases at an early stage. Scarlet fever face: The face is congested and flushed, and the skin around the mouth and nose is obviously pale. This symptom is a symptom of scarlet fever, an acute rash respiratory infection caused by a group A type B hemolytic streptococcus, which is known in Chinese medicine as “rotten throat cholera” and occurs mainly in the winter and spring. Any age can be affected, but babies between the ages of 2 and 8 are most likely to be infected. There is no automatic immunization agent for this disease, and prevention focuses on controlling the spread of the infection. Children should be isolated until two consecutive negative pharyngeal cultures are obtained. Close contacts who are frail or immunocompromised should be given cotrimoxazole or penicillin as prophylaxis. Carriers should receive 10 days of penicillin treatment. 1.Manage the source of infection: isolate the patient and carriers for 6-7 days. Some advocate treating with penicillin for 2 days, which will result in negative pharyngeal test subcultures in about 95% of patients, at which time they can be discharged. When a patient is found in a children’s institution or recruit unit, he or she should be quarantined until the last patient has been sick for 1 week. The quarantine period should be extended for those with persistently positive pharyngeal test subcultures. 2. Cut off the transmission route: During the epidemic, children should avoid public places and housing should be ventilated. Patients suspected of having scarlet fever or pharyngitis and those carrying the bacteria should be given isolation treatment. 3. Protection of susceptible persons: Drug prophylaxis can be used as appropriate for children’s institutions, troops, or other groups where necessary. For example, benzathine penicillin (PenicillinGBenzathine), 600,000-900,000 for children and 1,200,000 for adults, can be protected for 30 days. Or sulfadiazine 1 gram per day or weekly iodamide (Sulfadoxinum) 0.5 grams per week.