About two weeks ago, I started getting a itchy/dry discomfort of the vulva/labial, primarily around the clitoral hood. At first I chalked it up to vaginal dryness, and figured it would go away when my period would begin. A few days later, my period did begin, but the discomfort, while slightly better, did not go away. My period ended a few days ago, and the discomfort has become worse. It is sometimes almost unbearable. I have no odd odors or vaginal discharge, and have never experienced this before.

Because of the lack of discharge/odor, I assume that it is not an infection. I haven't changed my diet or soap or anything recently, so I don't think it's an allergic reaction or irritation. I do not douche or use feminine deodorants. I did buy some new bath towels recently, but when this became problematic, I switched to my old towels to see if perhaps I was having a reaction to the towel, and it still has not improved.

What could be causing this? If it is an infection of some kind, will it go away on its own? If it is merely an allergic reaction, what is the expected time frame for this to diminish?

I did try to take some Benadryl and rinsed myself with warm salt water, as suggested online, and it did help a bit, but it is not a permanent solution.

Any thoughts on this?