Itchy vagina

*HELP*

My vagina/labia has been super itchy lately!! I can't scratch in public (because awkward) so I just sit there and suffer... I have had a yeast infection before and this is different. I am currently trying some vaginal anti itch cream but it wears off in 1-2 hours. Does anyone have some suggestions?!?!?!?!

PS I am 13 years old and in 8th grade