The early trimester is the period when the fetal organs and systems are developing and forming. If you are not careful at this time, blind medication may affect the fetus and lead to some congenital developmental malformations or even pre-eclampsia miscarriage. Therefore, if you have a fever during pregnancy, especially in the early trimester, you must go to the hospital for laboratory tests to make a clear diagnosis and use medication under the guidance of a physician. Fever during pregnancy does not mean that all drugs should not be taken. Pregnant women should first of all relax themselves and not be too stressed. When there is a fever, first choose physical cooling, you can put a soft towel soaked in cold water on your forehead, or wipe your body with warm water or take a warm bath, and wipe your head, armpits and limbs with alcohol can promote heat dissipation; if it is said that the effect of physical cooling is not good, you can take oral Chinese medicine without obvious contraindications during pregnancy, such as Banlangen granules, Xiasanju granules, or Shuanghuanglian oral liquid, Chaihu oral liquid; if If the blood routine suggests obvious bacterial infection, you can apply penicillin antimicrobials such as amoxicillin or cephalosporins. The specific medication and dosage should be taken at a hospital interview and under the guidance of a doctor. In conclusion, when a pregnant woman has a fever, first of all, do not have too much psychological pressure, but choose physical cooling or cooling with medication according to the individual situation. At the same time, pregnant women should always drink more water and eat more fresh vegetables and fruits to supplement vitamin C, which has a certain effect on the prevention of colds.