Hi, I am 32 yrs old. I am suffering from a skin problem for last 8-9 yrs. My facial skin colour suddenly changes without any reason, mostly after using any soap or creams. Even the facial colour gets dull suddenly when I am at home also. It changes at any time, at any place without any reason. Again it regains it' s natural colour after using any soap or fairness cream. I think the upper layer of my skin has become so weak, that it doesn' t have the ability to remain in my natural complexion. Basically I am fair. But I am suffering from this unnatural multicoloured facial colour & really want to get rid of this. Kindly suggest the remidy for this & also pls let me know the reason behind it.