Generally, the recurrent fever of acute pharyngitis lasts for about 3-5 days, but the exact time varies according to the condition and the patient’s physical condition, so it is not possible to generalize. Acute pharyngitis is usually caused by bacteria, viruses and other invasive infections, if the patient does not get the right treatment or inflammation continues to stimulate the body, it will lead to recurrent fever. If the patient’s resistance is relatively good or there are no other complications, the recurrent fever is relatively short, usually about 3 days. If the patient often stay up late during the illness, poor diet and sleep will lead to a decline in resistance, which will easily lead to the emergence of complications, then the patient’s recurrent fever time is relatively long, usually about 5 days, part of the formation of chronic can be delayed for a longer period of time. It is recommended that patients with acute pharyngitis recurrent fever timely medical treatment, under the guidance of the doctor for the appropriate treatment.