Burning and painful vulva when you urinate may be a result of inflammation in the vulva, which can lead to a local burning and painful sensation due to the stimulation of urination. It is recommended to go to the hospital for examination, which is mainly to check whether there is redness, swelling and ulceration of the vulva, redness and discharge from the urethra, and inflammatory changes in the vagina. It is recommended that you should usually use water and wash the perineum effectively and reduce irritating lotions. After local cleaning, you can apply erythromycin ointment to promote the healing of the wound. If necessary, you can take broad-spectrum antibacterial agents orally, the most commonly used broad-spectrum antibacterial agent is cefdinir, 1 tablet each time, 3 times a day orally, and you can return to normal in about 3-5 days.