hello and welcome to hcm forum,
I would like to inform you that swelling following the extraction of your tooth is probably due to the infection which still persists, it is nothing to worry about, perform warm saline rinses atleast 3-4 times a day,
use an antibacterial mouth was(twice/day),
Avoid hot drinks, no hot compresses over the swelling, you can apply ice packs though.
You can take a pain killer 3 times/day, after meals.
The swelling usually take 3-5 days to disappear completely , but if it does not, then kindly visit your oral surgeon for a follow up.
Also, due to infection, fever
like symptoms are presented.
Kindly take care of your diet,
drink lots of fluid(cold
I hope this answer was useful,
i wish you good health.