Agree that it could be a yeast infection (less likely trich as that often doesn't itch but still good to get checked).
they'll swab you at PP and tell you what it is and begin treatment. good luck
OH, and if you are sexually active, use a condom to help prevent issues. good luck
Could be a bad yeast infection.Or trichomonasis... best bet is to go to gyn to be tested...trich is a std that's easily curable