Redness, swelling and hard lumps on the arms of infants after vaccination can be sterilized at the vaccination site or left untreated until it subsides or relieves.
After vaccination, if the vaccination site is contaminated with sweat or water, it may cause infection at the vaccination site, which may result in redness, swelling and hardness, etc. At this time, it is necessary to use iodophor and other disinfectant items to thoroughly disinfect the vaccination site of infants to prevent aggravation of the infection.
However, in most cases, the redness, swelling and hardness of the arm after vaccination is a normal local adverse reaction after vaccination, which can be relieved or subside within a few days. At this time, we should pay attention to avoid rubbing, squeezing the infant vaccination site, do not scratch, avoid getting wet, etc., pay attention to the infant nutritional diet and rest can be.
If the redness, swelling and hardness of the arm are serious after vaccination, the infant should go to the hospital for consultation and treatment in time.