I'd guess it depends what kind of work you do. I think if it's a kind of job where you'd be lifting heavy things around then you'd need some time off as that kind of straining is advised against. I do computer work and I work from home so I was able to work the next day.There's no real pain by the following day, just a tad uncomfortable as you're still swollen and it starts to itch a bit. I'd say a couple of weeks until it's totally unnoticeable, but after a week you start washing it every day and that's when things improve a lot
Usually, 2 weeks is enough for your post op recovery to return to normal. All scabs should be gone, extraction holes healed and a little natural hair growth. You may suffer shock loss or redness which could be obvious to someone looking at your head.
Using a saline spray regular after surgery will help you heal quicker and should reduce scabbing.