I'm curious about freckle care.

What kind of treatment or care should I use for freckles and blemishes? I'm thinking about trying some, but so far I've just been taking collagen. I don't know much about elasticity or anything like that, but I'm just taking it consistently because I feel like it. How do you manage blemishes and freckles on your skin? Since my skin is on the fair side, they seem to be more noticeable.