Vaccines are important guards to ensure the healthy growth of babies, and most babies start to receive vaccinations soon after birth, but not all babies are suitable for vaccination; when receiving different vaccines, young mothers and fathers should pay attention to some issues to avoid causing discomfort to their babies. What are the precautions babies should take after vaccination? Generally speaking, do not give your baby hot water or milk within 1 hour before and after taking oral vaccines (e.g. polio, rotavirus vaccine) to avoid scalding the live attenuated virus and then having no more immune effect. It should be administered with cool boiled water. For infants, sugar pills should be crushed with a spoon and dissolved in cool boiled water before taking, while older children can swallow directly. After vaccination, hold a cotton swab over the eye of the needle for a few minutes until it does not bleed, and then remove the swab. Don’t leave immediately after vaccination, you should rest for about 30 minutes and go home again if your baby has no uncomfortable reaction; if your baby has fever and other adverse reactions, you should report to your doctor and consult him/her in time. Do not take a bath for 24 hours after vaccination and ensure the cleanliness of the vaccination site. Some babies may have redness, swelling, pain and/or hard nodules at the injection site within 12 to 24 hours after vaccination, and generally no special treatment is needed. The vast majority of children can subside on their own in about 2 to 3 days. However, if the redness and swelling are large, you can apply local heat 3-5 times a day for 10-15 minutes after 48 hours of vaccination, or you can go to the vaccination office and ask your doctor for guidance. Whether the vaccine is given orally or by injection, it is important to drink more water after vaccination and to reduce going out and strenuous activities on the day of vaccination. What should I do if my baby sometimes has fever after vaccination? Some babies may develop fever, crying and irritability, and loss of appetite after vaccination, and the fever is usually low and does not exceed 38.5℃. Moms and dads should not be too nervous at this time, they can give their babies more water, do a good job of physical cooling and rest, and most of them can relieve themselves within a few days. If the temperature exceeds 38.5°C, medication should be given to lower the temperature and the little one needs to go to the hospital. When should my baby not be vaccinated? If your baby has fever, diarrhea, vomiting and other discomforts, do not rush to immunize, but wait until your baby is completely cured. If your baby has severe eczema, purulent skin infection and dermatitis, it is also inappropriate to vaccinate, and wait until the skin disease has improved before replacing it. Before each vaccination, the doctor will give parents an informed consent form, which parents must read carefully to avoid adverse consequences for their babies. For example, if a baby is allergic to egg white, he or she should not receive vaccines containing egg white, and if he or she must receive vaccines, he or she should consult a doctor before making a decision; babies with immunodeficiency diseases should not receive live attenuated vaccines such as polio vaccine; babies with chronic diseases and who have been taking oral hormones for a long time should consult a doctor carefully before receiving vaccines.