Question
A parent discovered on March 19th that their baby had developed a soybean-sized lump on their arm after receiving the third dose of the DPT vaccine. The lump was still palpable a month later, but there was no redness or swelling. The parent asked whether the lump was related to the vaccination, whether any measures should be taken to eliminate it, and whether the second vaccination should be administered in a different arm.
Answer
The lump may be a normal stress response to the vaccination and usually resolves on its own over time. Parents do not need to take any special measures; they just need to observe and wait for it to disappear. It may be considered to change the arm for the next vaccination to reduce possible reactions. The doctor’s advice is that this lump should not pose serious problems and can be safely disregarded.