Thanks for the query,
Probably you are suffering from a staph infection.
It is usually associated with fever
Get a culture from the pus done,
This will confirm the diagnosis.
You may require treatment with oral antibiotics
Please meet a dermatologist
for exact treatment.
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.