I had an abcessed upper wisdom my dentist said it would be ok to pull before antibiot, now the lump on gum line turned white.just pulled yesterday ok?

Difficult to diagnos: Without examining you. Best to call the treating dentist for recommendations. Assume he gave you an antibiotic to take following treatment. Hope this helps.

Probably: But difficult to tell without examination. Assuming treating Dentist or Oral Surgeon gave you a course of antibiotics to take. Call practitioner and report your symptoms, especially if the "lump" is enlarging, or you have increasing pain, or a foul taste in your mouth.