After cesarean section, if symptoms of cold and cough occur, it is best to treat them quickly, because after cesarean section, the resistance of human body is relatively weak, and if timely treatment is not carried out, there is a possibility that the infection will spread. If it is the early stage of a cold, you can first take antiviral drugs for treatment, such as Pu Di Lan Anti-inflammatory Oral Liquid or Four Seasons Antiviral Combination. Then take cough and phlegm medication, such as Qingxuan Cough Granules or Lung Li Cough Compound. In the later stages of a cold or cough, secondary bacterial infections need to be treated with antibiotics. If you are not allergic to penicillin, you can take amoxicillin capsules. If you are allergic to penicillin, you can switch to a cephalosporin antibiotic.