Vaginal Swelling
Questions in the Urogynecology forum are answered by medical professionals affiliated with USF Health. Topics covered include overactive bladders, bladder pain, fallen/drooping bladder, bowel urgency, bowel prolapse, cystitis, incontinence, pain with intercourse, rectal prolapse, surgery, urinary urgency, and uterine prolapse.

I can tell you that I think you're probably swollen from scratching, as the same thing has happened to my daughter. We've gone to two different pediatricians who tested her urine and found absolutely nothing wrong. We went to a dermatologist who gave us two different creams to help with the itching but neither worked. The derm. said she looked normal in that area and usually skin problems are very obvious in that region.
I then consulted a Urologist. He discovered a couple of things. First, she had a fold of skin partially covering her urethral opening that shouldn't be there. He said it could be causing a little bit of urine to not be expelled which could be causing the itching. She had surgery two weeks ago to remove it and she also had a cystoscopy done to dialate her urethral opening because he said it was narrow, which also can be problematic for urine flow. He also used the scope to go up inside her vagina to see if there was any infection or abnormalities that might be causing this and he found no signs of either and said she looked perfectly healthy and normal. Prior to surgery she had a bladder and renal ultrasound to make sure urine wasn't refluxing back into her bladder or kidneys. Both were normal.
At this point, she is still itching and burning. I realize the burning is a result of the itching. It should take about 3 weeks to a month for the incision from cutting the flap of skin over her urethra to heal and I'm hoping to God that's why she's still itchy. If this doesn't solve the problem, my next step is either an allergist or a therapist/mental health counselor.
I apologize for this post being so long but I wanted to tell you what I've been through so I can hopefully save you some time and co-pays seeing different doctors and also to think about alot of the stuff I've listed above as possible causes to this problem. Start with the simple ones first, i.e. have you recently changed or tried a new laundry detergent or soap? Fabric softener and drier sheets are also highly irritable. Have you recently been on antibiotics? If so, go see a doctor(not the same one....he doesn't sound too thorough) and get tested for a yeast infection. Along the same lines, check for other symptoms besides itchiness and being swollen...any unusual discharge, odor, abdominal pain, burning when you go to the bathroom? If you have any of these, find a reputable gynecologist or a urologist and get an appt. as soon as you can. Have you tried any OTC itch creams? There are so many but my friend has an unexplained itching problem every once in a while and she uses Gynecort, which helps relieve the itching.
I hope this helps and if I can be of further help, just let me know. :-)