Thank you for asking Healthcare majic. My name is Dr Ehsan Ullah & I have gone through your query. first of all its good news for you as the biopsy of your enlarged lymph node came back negative since findings of lymphadenopathy raises fears about serious illness sometimes but it can be due to benign infective cause. in such patients where lymph node biopsy is indicated, careful clinical history and detailed examination lead to diagnosis. you should visit your physician with this biopsy report and may undergo some clinical evaluation and if comes to be due to infective origin, then antibiotics cure this condition simply. Hope this may help you. Let me know if anything not clear. Thanks.