Vulvar burning pain for three years should be timely medical examination, to determine the cause, may be the emergence of vulvitis, vulvar cancer and other diseases, need to actively perform medication or surgical treatment. 1. Vulvovaginitis, if there is vulvovaginitis, the long-term stimulation of inflammation in vulvar area may lead to the damage of vulvar mucous membrane, so it is more likely to have the symptom of burning pain in vulva, which can be treated by erythromycin ointment, fusidic acid cream and other medicines under the guidance of doctor to avoid the aggravation of inflammation. 2. Vulvar cancer, after the cancer cells invade normal tissues, it may cause burning pain, so it needs to undergo surgery as early as possible to remove the diseased tissues, meanwhile, it also needs to go to the doctor for regular checkups, and if necessary, it may need to undergo radiotherapy or targeted drug therapy. If necessary, radiotherapy, chemotherapy or targeted drug treatment may be needed. In normal times, regular medical check-ups are needed and a good attitude should be maintained.