Suggest Remedy For Recurring Dark Vaginal Discharge With A History Of Hysterectomy

Hi, regarding hypothyroidism & vaginal discharge, I m on hormone therapy. I m 48 yrs old but had a hysterectomy about 15 yrs ago. I have one sexual inconsistent sexual partner (off & on) but haven t had sex with him since Nov. 2014. I was having the light brownish discharge off & on before then. There s no odor & no itching however, I saw a gyn in Dec 2014 who said I had chlamydia without doing a wet prep or anything but gave me antibiotics. I took them & it seemed to clear up but keeps coming back.