Hi, from about 2 months my 4 year old son have pink patch on his chick, is not scaly ichy or painful, is flat and look like his skin just little bit diferent colour. No creams are helping even with light hydrocortisone, sudocream, oils, im not sure but I think over this 2 months got bigger tiny bit, is vety visible couse his skin is light even colour. What this could be should I go to detmatologist?