Pregnant women can use fever patches, which are physical cooling measures applied outside the body and will not adversely affect the health of the pregnant woman or the growth and development of the fetus. However, it should be noted that if the fever persists, the pregnant woman should seek medical attention to clarify the cause of the fever. Fever-reducing patches are used to reduce fever by vaporizing the water in the gel and distributing the heat from the skin surface. When pregnant women use fever patches, they can put the fever patches in the refrigerator and then take them out to use, the effect of reducing fever will be better, but need to pay attention to the refrigeration temperature can not be too low, so as to avoid low temperature frostbite skin. When pregnant women have a fever, if the body temperature is below 38 ℃, you can first use physical methods to cool down, such as using fever patches in the above way, you can also wipe your body with warm water to increase heat dissipation. You also need to drink more water, which can speed up the metabolism and play a role in cooling down the temperature. If physical cooling is ineffective and the body temperature continues to rise above 38°C, you need to seek medical attention as soon as possible to clarify the cause and then treat it, and use medication under the guidance of a doctor to avoid delaying the condition and causing adverse effects on fetal development. Pregnant women should not self-medicate, because different drugs have their own contraindications, blindly using drugs may affect the fetal development due to adverse drug reactions. Pregnant women should pay attention to self-prevention in daily life, maintain personal hygiene, enhance physical fitness and improve resistance through reasonable diet and moderate exercise, so as to reduce the risk of bacterial and viral infections and reduce the use of medication.