Please help

My daughter has recently been crying when I wipe her down below. She is 3. She keeps saying “it hurts”. When I ask what hurts, she points to her VJay. I’m so confused! Does anyone know why she could be doing this or what it could be?

—-

She does not cry or seem in pain when urinating so I don’t think it’s uti. She just cries only when she is being cleaned. She’s been doing this for like a week. Yes I have looked at it, and I can’t see anything different except if looks abit red but not too red