Penicillin infusion can be given to pregnant women who are not allergic to penicillin. Studies have proved that the application of penicillin does not increase the incidence of fetal malformations, does not affect fetal development, and has no major effect 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 without allergic reaction, she must use penicillin under the guidance of a doctor. Before using penicillin for pregnant women, they need to do blood test to see if there is an increase of white blood cells, and they can choose penicillin treatment if there is an inflammatory infection condition. If the cold is caused by a virus, follow the doctor’s advice to apply antiviral drugs. Pregnant women should eat a reasonable diet during pregnancy, strengthen nutrition during pregnancy, eat more fresh fruits and vegetables, eat more eggs, milk, lean meat and other foods. Exercise appropriately, ensure sufficient sleep, enhance your immunity, and go into various checkups regularly during pregnancy.