Alternative treatments left a lasting impression on actress Gwyneth Paltrow -- literally. In 2004, Paltrow showed up to a New York film premiere in a low-cut black dress and a line of circular welts across her back, according to BBC News.
At second look, many alternative health and Chinese medicine practitioners piped up with an explanation. Paltrow had apparently been treated with the ancient practice of cupping. Repeated calls to her publicist were not returned.
Practitioners apply a cup, or a cone, to the skin and create a vacuum with hot air, or simply through suction at the top of the cup. The suction brings blood to the surface and, according to Chinese medicine, can have various benefits on the body from stimulating blood flow, to relieving pain and drawing Qi energy to the area.
However, for all practical purposes those marks on Paltrow's back were hickeys. The suction on the skin draws blood to the surface, breaking tiny veins and causing a bruise.