The place where the vaccine was given is red and swollen

After vaccinating their children, many parents will find that the vaccination site is always red and swollen, and the swelling is particularly severe. In fact, this situation is an adverse reaction, mainly because the vaccination site is very sensitive and may not be adapted at first, so it will become red and swollen. You can keep it clean at ordinary times, and be careful not to cover the area, and prevent it from being exposed to wind and infection.

2. What should I do if local redness and swelling occur after vaccination?

Redness and swelling at the vaccination site of your baby is a sign of inflammation, which is the body's response to external stimuli. The injection itself causes mild trauma and may cause inflammation. In addition, the ingredients in the vaccine that stimulate the baby to produce antibodies, as well as the stabilizers and preservatives are all irritants that can easily cause local inflammation. Moreover, the vaccine is a foreign body to the baby's body and will also cause varying degrees of inflammation.

Parents should pay more attention to the redness and swelling of the skin at the injection site. If the redness and swelling at the vaccination site is small and mild and can subside within a few days, it means that the inflammatory response is quickly controlled and will not cause harm, and parents do not need to worry; if the redness and swelling is widespread and more severe, you should go to the hospital for treatment, but tell the doctor the type of vaccine and the time of vaccination before seeing the doctor.

Parents would also like to be reminded that the vaccination site must be kept clean and the injection site does not need to be covered. If the vaccination site is covered with a Band-Aid or other material, it must be removed after two hours.

Except for BCG, no pus-like changes will occur at the injection site of other vaccines. 2-4 weeks after BCG vaccination, the injection site will begin to become red, swollen, fester, ulcerate, and scab, and finally leave small scars. The whole process lasts 2-4 months. Ulceration and pus discharge are common reactions after BCG vaccination. To care for the wound, just wipe it with clean water and then dry it. Using iodine or alcohol for local disinfection will make the wound difficult to heal. Parents must pay attention to this.