Thanks for writing in.
Difficulty while swallowing may be due to throat infection
Throat infection occurs in cases of impacted wisdom tooth
which is inflamed.
I would suggest you to visit a dentist
and get the impacted tooth extracted or flap overlying tooth can be removed to enhance tooth eruption.
Gargle frequently using lukewarm saline .
Maintain oral care.
Visit an ENT specialist
for further evaluation and treatment.
Take complete course of antibiotics-analgesics.