Mass or lymph node one side. Suggest me!

Hi.. We notice  swollen( painless) lump/bump below chin/ jaw line . Dr suggested for US . US report :e/o hypo echoic lesion on 24*17mm noted in right submandibular gland .there is internal vascularity noted with in the lesion. 1.left submandibular and bilateral parotid appear normal. 2.great vessals of neck appear norm al 3.no e/o cervical lymphadenopathy noted both sides 4.rest of soft tissues and muscles look normal Impression : mass / lymph node in right submandibular region .( Sugges FNAC). FNAC report = colour of aspirate:blood mixed , aspirate was obtained ,firm in consistency Highly cellular showing polymorphus,mixed lymphid population comprising of small lymphocytes ,centrocytes,centro and immunoblasts back ground show starmol element Proboble diagnosis: feature is suspicious of non specific lymphadenopathy. Given antibiotics for two weeks but size not reduced .. He is having skin infection ( tinea from pass 1year) and 3 tooth decay in right side . Can you please suggest me