Among the state-mandated vaccines, adverse reactions to diphtheria are the most common, especially for some special individuals, who can have systemic reactions such as fever, fatigue, headache, crying and local reactions such as redness, swelling and hard nodules after vaccination. In order to avoid adverse reactions in babies after vaccination, parents need to have a specific understanding of the diphtheria vaccine. What is the diphtheria vaccine? Pertussis, diphtheria and tetanus vaccine is a combination of pertussis vaccine, refined diphtheria and tetanus toxoid in the right proportion to prevent three diseases: pertussis, diphtheria and tetanus. Pertussis triple vaccine is divided into two types: whole-cell adsorption and acellular adsorption, and the reaction after vaccination with whole-cell adsorption is relatively large, so the vaccine currently used is a mixture of acellular pertussis vaccine, diphtheria and tetanus toxoid, i.e., acellular pertussis adsorption, or triple vaccine for short. What should I do if my baby has a fever after vaccination? 1. Drink more water After the diphtheria vaccination, if your baby has a fever, drink more water and eat a liquid diet, such as watermelon juice, to ensure that the body has enough energy and water. 2, more ventilation and heat dissipation After the baby has been vaccinated with the diphtheria vaccine, parents should pay attention to more ventilation in the room, pay attention to heat dissipation, dress generously and avoid wrapping with quilts. In summer, you can use air conditioning, room temperature control at about 2 ℃, pay attention to regularly open the window ventilation, so that the room air convection. 3, pay attention to rest After the baby has a fever signs after the diphtheria vaccine, to sleep more, to ensure sufficient sleep can be beneficial to the recovery of the disease. 4.Physical cooling Take a warm bath with a towel dipped in warm water (the water temperature should not feel hot) and wipe it on the neck, armpits and thighs for 5-10 minutes. You can also use commercially available “antipyretic post” or home ice bag, put on the forehead to help cool down the heat. 5.Drugs to reduce fever After the injection of the vaccine, if the baby’s temperature reaches 38.5 degrees or more, it is necessary to take antipyretic drugs to treat the fever, but infants within 1 year of high fever should first use physical cooling methods, generally do not play antipyretic injection, do not eat antipyretic drugs to avoid deficiency and drug side reactions, the use of other drugs should also be cautious.