Question
My child is nine months old and got a hard lump on their arm after receiving a vaccine. There is no redness or swelling, and it’s been more than a week now. I want to know if this situation is normal and how to make the lump disappear?
Answer
Based on your description, the baby’s condition may be due to minor skin damage during the injection or a slight infection at the injection site. You can try using a warm towel for cold compresses or applying potato slices to the hard lump. Usually, after some time, the lump will disappear naturally. If you suspect an infection, you can apply Erythromycin ointment to the lump or use iodine alcohol for disinfection. These are suggestions for the question “Is the hard lump after vaccination serious?” I hope they are helpful to you, and wish your child good health!