Symptoms of vaginitis are extremely common, accounting for over 10 million office visits per year. We often self treat with over the counter medications. Moreoften however, we can are treating the wrong thing and need to be seen for the proper care.
Normal Vaginal Discharge:
Is white, clear, thick or thin.
Does not smell bad.
Amount of discharge varies especially if pregnant, using birth control or prior to menses.
Abnormal Discharge/Symptoms:
Causes itching of the vagina or around the vaginal area
Redness, pain or swelling around the vagina
Discharge that is foamy, greenish/yellow, or bloody
Bad/Foul smelling discharge
Pain when urinating or having sex
Pain in lower abdomen
Fever
Causes of Vaginal infection:
Good bacteria from vagina have been destroyed by other bad bacteria
Reaction to something in the vagina such as a tampon or condom
Sexually transmitted infections
Sensitivites to soaps/detergents/lubricants etc.
Hormonal changes
Recent use of antibiotics
Treatments:
Each vaginal infection requires a different treatment, you should see your midwife if you have concerning symptoms. If you are diagnosed with a sexually transmitted infection your partner should be seen as well for treatment.
Prevention:
Wear cotton underwear, avoid thong underwear.
Wash the genitalia only with warm water, no soap. The vagina is self cleansing.
Bath only in warm water, do not add any perfumes,salts, oils or bubbles to the water.
Use white, unscented toilet paper, avoid using baby wipes. Wipe from front to back.
NEVER douche.
Use only non-scented tampons and pads, and use only if absolutely needed. AVOID Always brand.
Use clear body soaps, nothing milky/creamy. Especially avoid Dove, Ivory and Caress.
No fabric softener sheets. No Tide detergent.
Lori
Midwife Matters 
As we know that most of the women embarrassing to tackle a sensitive topic like vaginal irritation and itching problem. But women should be aware of that, I think your post really helpful to know more about it.