This is a large shave excision and likely will leave a scar. I suggest scar gel at this time and speak to your physician about long term improvement after it heals. You may even have cells at the base of this that the mole can regrow, it may be best to have an excision. Best, Dr. Emer.
Hydroquinone will not help with a mole but will help prevent hyperpigmentation. I suggest you see a cosmetic dermatologist with experience. Best, Dr. Emer.