Hello there ,
Thanks for writing your query,
Wisdom tooth is the last tooth to erupt in the oral cavity and often its eruption is associated with symptoms like pain and discomfort in eating , difficulty in opening mouth , swelling and cheek bite.
wisdom teeth are often tilted in position and impacted in the bone , gums overlying the tooth usually undergoes inflammation known as pericoronitis
The tilted position of the tooth leads to entrapment of the cheek mucosa in between the teeth during biting.
Due to cheek bite , the mucosa gets inflammed and appear red and sore due to trauma.
i would suggest you to go for symptomatic treatment at home like gargling with lukewarm saline water or antiseptic mouthwash like chlorhexidine
You may need to get an OPG radiograph done for you which will show the exact position of the tooth, consult a dentist
and get the tooth extracted surgically.
Apply oral antiseptic ,analgesic ointments
like dentogel or mucogel topically over the affected area.
i hope this helps ,