If the pubic area is itchy and red, it should be due to inflammation. It should be a common gynecological symptoms of vaginitis, you must go to the hospital to check the vaginal secretions, do secretion culture or smear. Check whether it is due to trichomonas, mold and other urethritis infections, or infections caused by sexually transmitted diseases. If trichomonas urethritis, you can use metronidazole, which can be used to douche the perineum or to douche the vagina. If moldy vaginitis should use clotrimazole, dakinon suppositories and other drugs. In addition, usually pay attention to vulvar hygiene, underwear selection of cotton loose underwear, daily replacement, be sure to boil water, and put in the sun to dry, so that the itching and redness of the pubic area, will soon be cured.