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 in the jaws 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.
i would suggest you to go for symptomatic treatment at home like gargling with lukewarm saline water or antiseptic mouthwash like
chlorhexidine or
betadine.
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.
It is not advisable for you to remove the pus with the needle or anything else at home , the pus pocket or the pericoronitis nneds to be treated professionally by currettage or Operculectomy
i hope this helps ,
take care.