Pregnant women who are not allergic to penicillin can receive penicillin infusion. Studies have proved that the application of penicillin does not increase the incidence of fetal malformation, does not affect fetal development, and does not have a major impact on the pregnant woman or the fetus. If the patient has an infection during pregnancy that requires the application of penicillin, and the pregnant woman has no history of allergy and has done a skin test with no allergic reaction, she must use penicillin under the guidance of her doctor. Pregnant women need to do routine blood tests before using penicillin to see if there is an increase in white blood cells, and there are inflammatory infections that can be treated with penicillin. If the cold is caused by a virus, follow the doctor’s instructions to apply antiviral drugs. Pregnant women in pregnancy reasonable diet, strengthen the nutrition during pregnancy, eat more fresh fruits and vegetables, eat more eggs, dairy, lean meat and other foods. Appropriate exercise, to ensure adequate sleep, enhance their own immunity, pregnancy regularly into the examination.