Thanks for the query.
Presence of pus cells indicates that there is bacterial infection.
Treatment is with antibiotics and you have taken many of them.
However the choice of antibiotics should be based on culture and sensitivity tests.
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.