Hello, I can assume that you are currently suffering from a recurrent vaginal infection which gives rise to above said clinical feature. Most common causes are a vaginal yeast infection or trichomoniasis though it should be confirmed through medical tests. In this context, you need to eliminate certain predisposing factors like: 1) Diabetes by undergoing one blood sugar (PPBS) test. 2) Presence of any STD by undergoing a complete STD panel. 3) Using hormonal pills/ IUD or inserting foreign objects (like tampon etc). 4) Other co-existence factors: frequent sexual intercourse, irregular diet habit, hormonal imbalance (in pre-menopausal age), poor genital hygiene, cervicitis/ vaginitis etc. It may be aggravated by using a chemical substance like lubricant/ jelly during sex or soap/ detergent/ other bath products or cosmetics, causing repeated friction & irritation inside the vagina. It may extend labial swelling. In this scenario, you must consult with a gynecologist for pelvic examination (with or without speculum) and relevant investigation (like vaginal swab test, urine examination, hormone assay etc) to pinpoint the diagnosis. You may require proper antibiotic treatment and vaginal suppository at bedtime to get relief. Treatment should be started one week prior to your period. Take prescribed medicine from your treating doctor. Hope I have answered your query. Let me know if I can assist you further. Take care Regards, Dr Ivan R. Rommstein, General Surgeon