Hi, thanks for writing to HCM.
Well, If I were your treating Doctor for this case of post-auricular painful lump, I would come up with three possibilities, these include:
1. lymph nodes due to some chronic disorder like scalp/ear/nose/ infection,
tuberculosis,
lymphoma or chronic throat /
neck infection or even malignant diseases in elderly people!
2. The second possibility is of benign and simple conditions like
lipoma or neurofibroma; there is nothing to worry about these!
3. The last possibility is of an infected sebaceous cyst or some other cysts like branchial cyst or lymphatic cysts! Nothing to worry about these also!
I suggest you to go for an FNAC and
ultrasound of the lump for confirmation and to relieve your concerns!
Hope this answers your question. If you have additional questions or follow up questions then please do not hesitate in writing to us. I will be happy to answer your questions.
Wishing you good health.