Help

I am scheduled to get my wisdom teeth out the first week of September. I work the day after my removal. I talked to hr and they said they can give me a doctors note bc I just don’t think I’ll be able to go back to work the next two days that I’m scheduled. My hr said I need to use my time. But of course I only have enough to miss one day. I really need to get them out as they are causing me pain and one is infected. I can reschedule to when I get more time but I don’t wanna wake up in more pain and have to get them out asap which will cost more and what not .