Hello & welcome
First of all if
wisdom tooth extraction was traumatic or extensive surgical than it will take time for
wound healing because your father is diabetic and chest pain may be because of
hypertension.
Secondly we have to rule out whether tooth was completely out or not so go for a check x-ray, because even after extraction of tooth there was infection.
He requires good course of antibiotic & sugar check.
So i will advise to visit your
dentist & consult.
thanks & take care