<human>: 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.
<bot>: Mam/sir,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 5%of patients and can also be associated with other conditions like neurofibromatosis(95%), 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 rate(0.1%) twice a day application.