Persistent Vaginal Itching: Exploring Causes & Relief Options

Question
I hate to ask this over the computer however I have been to my Dr. 2x now, with no relief and need some possible avenues to explore.
I have been experiencing sever vaginal itching for about 1 year now.  I have little to no discharge(dc) that is white in color.  There is no odor to the dc and from what I can tell I have no "fishy" or foul odor. The itching seems to come on at night when i settle in to go to bed.  When it first started I had been wearing thong underwear exclusivly, switching to cotton crotch did not help (I am still wearing cotton crotch regular undewear).  I have had a normal pap, and was treated with Flagyl for what the Dr. Called bacterial Vaginitis.  I have also noticed that I now have a bruise like mark on the inside of my Vagina towards the bottom.  I never noticed it until I started itching and tried to check out what was going on down there.  I asked the Dr and she said it is unrelated. The itching seems to start on the very inside of my Vagina and then goes up to the clitoral area. I am on the Depo Provera shot and have been for about 5 years.  I have also noticed that about 6 mos after this started I am having problems with residual urination.  I will urinate and minutes later feel the urge again and only release maybe 5-10mL of urine.    I am not having painful or burning urination.  Please help point me in the right direction as it's not only embarasssing but it's frustrating and my spouse is starting to wonder why I always itch down there!  I think I provided everything if you need to know anything else please ask!

Thanks in advance,
Holly


Answer
Hi Holly,
It sounds like a lot of what I would have suggested has been done. Do you have vaginal dryness? It may be that simple. Has your doctor ever mentioned atrophic vaginitis? Sometimes just applying some Premarin cream to the vaginal opening takes care of otherwise none illness related itching. This is the best guess I can come up with at this point.