The specific how to reduce fever during mastitis during menstruation depends on the patient’s specific situation. If the patient has a mild infection and the maximum temperature of the fever does not exceed 38.5℃, he can choose to take oral antibiotics such as amoxicillin, cefixime and other anti-inflammatory treatments, and at the same time add Chinese herbs such as Chai Hu injection or Lian Hua Qing Fei granules to clear the heat and detoxify the body, and to reduce the fever. If the patient has a more serious infection with a higher temperature of more than 38.5℃, along with chills, the patient needs to have blood drawn for blood examination and culture to select a sensitive antibiotic for treatment. If blood culture cannot be performed, cephalosporins, penicillins, ornidazole and other drugs can be used for intravenous infusion, while fever-reducing drugs such as ibuprofen are also available for treatment.