Hello Dr,My Kid 4 Years Female Having Vaginal Pain And

hello dr,My kid 4 years female having vaginal pain and redness complaint last 2 day but now she is not having pain, last month also she had same complaint but after 1 day she said she didnt have any pain or itching is it safe to give her cital syrup and what quantity is for 4 years kid is. pl guide. thankyou.