Hello
Please visit the dentist and rule out any infection in the extrcation socket. Even evaluate the other neighbouring teeth because if any other teeth has a decay then that should also be addressed to. Tell her to do warm saline rinses atleast 4-5 times in a day as well.
Next Steps
Get a clinical as well as radiographical examination for that extraction socket area and the neighbouring teeth.
Health Tips
please don't keep popping a painkiller instead get the treatment for the same.