Thanks for the query.
You might have developed furuncle
These are deep bacterial infections.
Treatment is with antibiotics.
Do hot fomentation,
This will help in accumulation of pus,
It can be drained later.
Please meet a dermatologist
for exact diagnosis.
Let me know if you have any other doubt.
you can ask a direct question to me on this forum, following the below link.
Wishing you a good health.