When i wipe my vaginal, there are black rolled up dirt particles, what are these particles? i recently changed soap, is this the reason for itching?

Viginitis maybe: Vaginitis is an inflammation of the vagina. It normally results from an infection. It typically present a white, gray, watery, or foamy, discharge, itching, burning, and sometimes pain. Douching and using vaginal products may increase the chance to suffer from vaginitis. Try to stop using vaginal products and if there's no improvement visit your health provider.