Yes, you can go scuba diving, as long as you don't have major swelling. Most often, it is recommended waiting 24 hours before resuming all activities. It can take up to 2 weeks for final results with filler. Best, Dr. Emer
I tell my patients that they can generally do everything if there is no major swelling just two days after the treatment. Depending on how you feel you should be able to make that decision yourself or ask your treating physician for advice.