I feel like my dark circles are really bad, so it's bothering me.

My dark circles weren't this dark before, but lately, they look so faint every time I look in the mirror that it really bothers me. It’s not just me; everyone who sees me frequently asks if I look tired or if I’m sick, so I think that makes me even more self-conscious. I bought and used cosmetics that claim to be good for reducing dark circles, but they haven't really had any effect. What else is effective for dark circles? I'm also curious about what related procedures are available and if there might be any side effects.