thanks for your query at HCM
swelling in ear lobe after puncture might be due to collection of blood or infection.
if infection you will have fever
and pain in the area of the swelling.
then swelling has to be incised and drained.
if no fever and pain it might be due to collection of the blood due to trauma.
there is no need for incision, it will resolve on its own. incision is necessary only for cosmetic purposes.