One popular skincare trend on social media shows individuals using floss to scrape blackheads away. This technique might sound highly convincing, but beauty experts and dermatologists warn against it. Using gentle pressure might push a tiny amount of excess oil out, but that’s it. You cannot scrape off actual blackheads using this method. Instead, this process can irritate the surface of the skin and aggravate existing blackheads. If you want your blackheads removed, your safest bet is visiting a professional.