Refrigerated petroleum jelly (Vaseline) on an unscented sanitary pad may be soothing for an itchy or irritated vagina or vulva.
However, a person applying products to the vulva should do so with caution. Some older research links using Vaseline with an increased risk of vaginal health issues such as bacterial vaginosis.
A person should also avoid using anything inside the vagina as this can worsen irritation, itching, or discharge.