Hello and welcome,
Canker sores are aphthous ulcers
which usually appear as a blister-like lesion.
From the details you had provided,
you had undergone a traumatic extraction.
yoUr gums and lips has injured during the procedure.
I would suggest you to take complete course of antibiotics-analgesics.
Usually,the teared mucosa heals by its own.
TO enhance wound healing
,frequent warm saline gargle and betadine
rinse can be done.
Avoid food getting accumulated at the socket area since it can delay the wound healing.
If possible,get the extraction socket area sutured by your dentist
hope this helps.