Depends. What to expect depends on the stage (ie extent) and location of your disease. Sometimes cases are managed with just surgery and other times they are managed with radiation and/or chemotherapy and sometimes they are managed with all three.
Vulvar cancer. At your age, most likely you have severe dysplasia (pre-cancer). It will be treated by laser ablation or local resection. Healing will take 6-8 weeks.
Biopsy. To diagnose vulvar cancer you need to be examined by your doctor and he or she will need to do a biopsy of where they think the cancer is so that they can prove with tissue confirmation that you actually have cancer.
Vulvar cancer. A biopsy o the lesion is needed.