A thorough clinical evaluation has to be done by your dentist
as well as ENT SPECIALIST
I would advice you to check for any grossly decayed or impacted wisdom tooth
in your oral cavity.
If present,get it removed.
Maintain oral care well.
If symptoms persist,please do visit an ENT SPECIALIST.
Meantime,gargle frequently using warm saline or betadine
Avoid cold,spicy foods.
Too much exposure to cold weather has to be limited.
Take complete course of antibiotics prescribed by your dentist.
Rinse your mouth after every meals.
Hope you get well soon.