Thanks for the query to HCM. I studied your problem in depth and I understood your concerns.
In my opinion your lump on ear at piercing site is due to the cellulitis
with infection at the piercing site.The ring you put is causing a metal reaction.
So you need to take treatment under cover of a ER Surgeon and don't self medicate,as your case has become complicated and would damange your ear pinna permanantly.
So act fast and get ER Surgeons consultation and intervention URGTLy.
If you dont want to remove as you are afraid of its pain, then
Show to ER surgeon if it grows and worries more.
Ideal solution is to remove the metal causing contact dermatitis
, leading to perpetual infection at piercing site.
So don't build up wrong concepts and create more psychic complications in you which would increase risks and costs to you, but just ask a query to HCM and be comfortable to resolve your health issues.
Welcome for any more query in this regard to HCM.
Write good resume and Click thanks if you feel satisfied with my advise.
Have a Good Day.