Welcome to Healthcare Magic Have you been using a new pair of underwear and vest or inner t-shirt. Are you sexually active. Any burning sensation on passing urine. You need to get evaluated for possible causes like allergic reaction, fungal infection. You can apply soothing lotion like Lactocalamine lotion which along with Tablet Cetrizine at night under medical supervision should relieve the itch but the cause needs to be ascertained. You should consult a Dermatologist and get a thorough checkup. Avoid sun exposure. Eat plenty of fresh fruits and green leafy vegetables. Drink plenty of water. Avoid sweat accumulation, keep the areas clean and dry, change your innerwear everyday.