A hickey is technically a bruise, which is medically known as an ecchymosis or purpura. This mark forms when suction or biting ruptures small, superficial blood vessels, or capillaries, beneath the skin’s surface, allowing blood to leak and pool into the surrounding tissue. The resulting discoloration progresses from red or purple to green and yellow over time, signaling the body’s natural process of breaking down and reabsorbing the trapped blood. Because these marks appear prominently on exposed skin, people often seek immediate methods to accelerate their disappearance.
How the Coin Method is Supposed to Work
The coin method is a popular anecdotal technique that aims to mechanically manipulate the pooled blood that forms the hickey. The process involves chilling a coin, such as a large quarter, in a freezer for several minutes. Next, the skin is stretched taut around the bruise. Then, the smooth edge of the chilled coin is forcefully scraped across the hickey in short, firm strokes, moving outward from the center.
The theory behind this action is that the scraping creates friction and pressure, physically pushing the clotted blood away from the immediate area. This mechanical dispersion is thought to break up the concentration of blood cells, spreading them out over a larger, less noticeable area. However, this method is a form of counter-irritation, similar to the traditional practice of gua sha, which can cause further damage. Aggressive scraping may lead to significant skin redness, irritation, or even break more capillaries, potentially worsening the appearance of the bruise.
Effective Alternatives for Faster Healing
To support the body’s natural healing mechanisms, immediately apply a cold compress or an ice pack wrapped in a cloth for 10 to 15 minutes. This vasoconstriction, or narrowing of the blood vessels, helps minimize further internal bleeding and swelling. After the first 24 to 48 hours, switch to applying a warm compress several times a day. Heat encourages vasodilation, increasing blood flow to the site, which helps the body efficiently reabsorb the pooled blood and carry away cellular debris.
Topical products can also be beneficial. These include creams containing Vitamin K, which may aid in the breakdown of stagnant blood, and arnica cream, often used to soothe inflammation and reduce discoloration associated with bruises.