labia itch that comes and go!!!

hi everyone. need your opinion on this. please help. so my labia has been experiencing itchiness for almost 2 months on and off. it disappears for 2 weeks and now its back on again. and just a few days ago, i found my inner labia is bleeding and it looks like a cut. Dont really know how i get it. it might be from scratching but my nails arent that long. Do you know what causes this cuts and also how can I get rid of this itch permanently? should i be worried?