i am very depressed due 2 the suntan wich is bothering me since 2 years almost.it has affected both my left and right hand.my hands have completely become dark u can make out a huge difference between the complexion of my other parts and my hand .due 2 this i am not able to wear sleeveless clothes which i love 2 wear so plz tell me what are the medecines available 2 treat this problem