What Is The Remedy For Vaginal Itching, Watery Discharge And Foul Smell With Rashes?

hi i am 25 year old ,had sex with my boyfriend one year back ,afterwards i have complain of aginal itching ,discharge thin watery but not foul smelling associated with vaginal rashe also around anus and buttok ,it is so severe i cannot pass urine,on and off i hae this condition since one year also got treatment of cpirofluxacine,cefruximine,fluconazole ,tetraconazole ,aclyoir but no response done my high aginal swab dat was clear,what can ido?