I used hair removal on private area and broke out really bad on one side of my vagina it hurts when i use the bathroom and glands are swollen why?

Many causes: That area has many delicate soft tissues that responded vigorously and rapidly to trauma. Depending on the method used, there may be inflammation as it tries to heal or a low-grade infection. It should be improving after 7 to 10 days but if not, then you really should see a physician to ensure the problem is not significant. The swollen glands (lymph nodes) are a response to the inflammation.