Get it evaluated by a dentist. U r 16 and wisdom molar is erupting, it looks like from the pic. Get it evaluated whether there is enough space for it come out by an X-ray and clinical examination.
If there’s space to erupt, a little exposure of the tooth by removing a part of the above gums using electrocautery will create space and the tooth will erupt without pain. But if it’s in an abnormal position, better to extract it.
Next Steps
Do warm salt water gargles. U can massage the area with dentogel/dologel for relief