Thank you for the query.
Presence of pus even after extraction indicates formation of periapical abscess
in the bone , here one thing which has not been specified in the history is reason for the teeth removal , if it was a decayed tooth with abscess formation then suggested treatment after extraction was curettage of the apical area where the abscess was present . I would suggest you to see the dentist
to rule out the possible reason for the abscess and if required open curettage should be performed to remove the granulation and drain abscess in the area, followed by a course of antibiotic and analgesics and leave it for healing for about 3 months to get an implant placed .
Hope this information helps you.