Hi and welcome to HCM. Thank you for your querry.
This cant be treated by antibiotics anymore. Surgical incision and drainage
must be performed and this had to be done much earlier. This is localized infection and antibiotics wont have any effect. Surgical managment is done under local anesthesia
and is very simple so you dont have to be afraid of it.Consult your GP or surgeon.
WIsh you good health.