Eyelium

Eyelium is a drug that, with just one pill, can erase a day's worth of memories. Once the drug takes effect, to others, the person appears conscious and living their life as usual, but they have absolutely no memory of that period. In other words, if you take it before an unpleasant event, you can go about your daily life without remembering it. What kind of color would a person's life become when they can control their memories with medication…?