Scratching from vaginal irritation created red sore spots on vulva, doctor tested for herpes. doesn't herpes result in blisters? what else could be?

Various causes: Vaginal itching without discharge can indicate infections like yeast or STDs like herpes. It can indicate an allergic reaction to household products like certain soaps and laundry detergents. There are also some skin conditions liked lichen sclerosis which can cause vaginal itching. Hormone deficiencies from menopause or breast feeding can also cause itching.