Freckles & Blemishes & Whitening

As I get older, I develop more blemishes and age spots. I make sure to apply sunscreen frequently, especially on hot summer days like these. However, once age spots or blemishes appear, they don't disappear easily, so I make my own homemade potato or cucumber packs in the evenings by grinding the ingredients by hand. I do this often because I hear it is also good for the complexion. I would appreciate it if you could let me know if there is a better method. I am concerned.