hello and welcome to HCM forum ,
i would like to inform you that pain in jaw following extraction needs a thorough examination y your dentist
, i would advise you to see an oral surgeon for the same.
until you visit a dentist, kindly perform warm saline rinses(3-4 times/day),
antibacterial mouth wash(twice/day),
Do not worry, your dentist will take an ,x-ray to make sure no other tooth is causing these symptoms.
i hope i answered your query,
i wish you good health.