Hello,
From the symptoms,it sounds like epidermoid cyst which is infected.It is a benign cyst usually found on the skin.It can also be caused by a blocked pore adjacent to a body piercing.
Surgical excision by traditional wide excision, minimal excision, and punch biopsy excision may be required.I would suggest a dermatologist’s evaluation.
I hope it helps. Take care and pls do keep me posted on how you are doing or in case you have any additional doubts. Kind regards.
This is known as pyogenic granuloma,may need antibiotic.