Dear Sir, I have two questions..... 1.If someone has bright fair skin by born, is it possible to improve skin tone by 4 to 5 tone permanently???? If possible, what kind of treatment may require??/ 2.My cousin has bright fair skin by born. Her age is 21. About 1 year ago,my cousin started treatment for her heart problem. After few months,some parts of her body started darkening and gradually it has covered the whole body.she has no allergy problems and she normally avoids exposure to the sun. Now she is very upset and worried about her skin. Is there any permanent treatment for her????