Hi,Good Morning.This is Dr.Savaskar from India,attending your query to my online HCM Clinic. -I studied your query in depth and Understood your health concerns. -Accordingly on the facts given by you- Treatment I would suggest is as follows- a-Your query facts are incomplete for the demands put by you.So I would advise you to consult a Surgeon-as the facts given for replies are insufficient to comment-on the type of the lump of throat?which could be due to the oral sex and STD related lumps....Like Gonorrheal Tonsillitis ? LGV?infectious Mono?/ and bladder infection. b-Still-AS your have taken treatments with 3 antibiotics of which-while taking flagyl you developed throat lump.Gynaec-Surgeon-Doctor would treat it after fixing out of Candida or / GERD.I would suggest the oral smear and or a scrapping of the lump to be tested under MICRSOCOPY, for fixing the cause of the throat lump. b-It would need FNAC- Biopsy before advising any specific treatment.FNAC BIOPSY would fix its cause and Gynaec-Surgeon-would treat it according to the causes. YOu have multiple symptoms and hence I would advise you to consult with Gynaec-Surgeon and STD -specialist,who as a team would treat your complex health problems on the lines suggested as above. c-Before treating the - GERD as confirmed from -Barium swallow-I would suggest OGD to confirm it.I would advise Proton-Pump Inhibitors with Domeperidol for the Reflux control. d-Beside this to avoid any further missery-follow normal Sex-practices with your partners with advise of the Gynaec Doctor, here on-wards,as yours is a complex health issue and you need to be serious about it on the lines suggested herewith. Wishing you healthy living and early recovery of this query. Wellcome for more queries till you get the satisfied.Thanks for your query to HCM Clinic.Have a Good Day...!! Dr.SAVASKAR M.N. M.S.GENL-CVTS, Super specialist and Senior Consultant-and Expert in Non-Curable-Disease therapy for Cancer,Asthama,etc,Rejuvenation therapy and Tissue failure -reversal therapies.