Spot or mole on bum hurts. What should I do? (Photo)

I would agree with your plastic surgeon that extending the scar to remove the dog ears after your mole removal would be the best method of repair.  

Thank you for your question and I am sorry to hear of your symptoms.  This is not a normal recovery from a mole removal and I would recommend you reach out to your surgeon for an in-person evaluation.  Once the cause of your spreading pain can be determined, the best treatment option...

If this mole is right in the middle of the brow it needs to be excised and surgically repaired so the hair is connected.  If lasered shaved or removed without brining the skin together there likely will be no hair later and you would need a transpalnt. Best, Dr. Emer.

The only recommendation I give patients after mole removal is to make sure to wash with soap and water followed by application of petroleum jelly (i.e. Vaseline).  This is usually enough for proper wound healing and there really is no need for a topical antibiotic as likelihood of infection...