I had four volume electrolysis clearings done by "About You" in Wilmette, IL (a suburb north of Chicago). My first full face and neck clearing took place over two days with a total of 32 hours of flash thermolysis using 27 MHz Apilus epilators. Two techs worked on me simultaneously. I came back in 6 weeks to have my face and neck cleared again the same way. It took 17 hours to complete. I was told that I had the heaviest beard they have ever worked on, so you will probably not need that many hours. The third round occurred 6 weeks later and took 17 hours. A fourth session 6 weeks later was completed in 14 hours.
You are sedated and injected with lidocaine/epinephrine to completely numb the face. That makes the treatment painless until the afternoon when it wears off. Addition injections will then be administered.
My face swelled up quite a bit even putting ice packs on for 20 minutes each hour in the evening. I also had noticeable redness, and some red spots where the skin bled a bit.

The hair on my chin was the densest, and after 4 clearings, I noticed what looked like scarring of the skin. It resembled orange peel.
After my 4th volume clearing at the Zukowski center, the amount of hair on my face and neck was significantly reduced so I continued electrolysis at Precision Hair Removal and Skin Care in Chicago. Irina Cardos was my electrologist there. She continued full face and neck clearings in a 6 hour session using flash thermolysis. The only pain deading was 600 mg of Advil and lidocaine numbing cream applied to my face. Most girls can't tolerate 6 hours of continuous electrolysis, but I was able to without much discomfort.
I had my 21st full face and neck clearing two days ago, and Irina estimated that only 10% of my original facial hair remains, and that hair is very fine and shallow rooted.
I've had one fractional CO2 laser skin resurfacing treatment to help smooth the scarring on my chin caused by the electrolysis where the hair was very dense. It does seem to be healing up and becoming smoother over time.
My approach is what you'd call 'aggressive' facial hair removal. I started 13 months ago and have spent a total of $17,500 for 164 hours of electrolysis, and have eliminated 90% of my face and neck hair permanently.
My electrologist is using blend & flash modalities to treat the remaining hair with good results. I'm hoping to finish up in another 6 months at a total cost of under $20,000.