Haii, The persistent bump at the wisdom tooth extraction site (from 2018), along with recurrent burning sensation (likely neuropathic), is most commonly due to nerve irritation or damage (paresthesia) from the procedure or trauma from opposing upper tooth contact.
Next Steps
consult an oral and maxillofacial surgeon (or an experienced endodontist) for a thorough clinical examination, as this has persisted for years.
Health Tips
If trauma from upper tooth contact is confirmed, selective occlusal adjustment or crown reshaping on the upper tooth. Is advised