<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hi, my six year old daughter has recently developed a flat light brown patch in her leg, like a very large freckle. Just found another one on her leg and am getting concerned. Do you know what this could be? It s not painfull, raised or dry. It actually looks like a birth mark but has only developed since she has come home from a holiday in France.  <response>: Mamsir,First you have to examine your daughters body thoroughly for other lesions and similar patches. Flat light brown patch can be:1. Cafe AU last male which is seen physiologically in 5of patients and can also be associated with other conditions like neurofibromatosis95, MC June Albright syn Chat Doctor. These skin lesions develop in early infancy, and they may become obvious after 2 yrs of age. 2 cafes u last males are physiological, and you need not be worried about them.2. Second possibility, it can be post inflammatory hyperpigmentation, since she has gone out for a holiday. Some edematous lesion would have occurred before leaving light brown patch. It can be treated with potent topical corticosteroids like dexamethasone vale rate0.1 twice a day application. 