In fact, the reason for its formation is that under the action of suction (generally longer than 30 seconds), subcutaneous capillaries rupture and bleed, and red blood cells overflow into the dermis, thus forming a red hickey. So, when you touch your skin, you may still feel pain.

At the same time, when kissing, the body will secrete more neurotransmitter 5- hydroxytryptamine, which can make endothelial cells contract, increase intercellular space, and leak plasma, further promoting the generation of kiss marks.

Generally speaking, hickeys, like ordinary bruises, will gradually fade in a certain period of time and finally disappear without a trace. It will disappear within 5- 12 days, and the injured skin and blood vessels will be repaired with confidence. The specific time required and the area of the hickey are related to the individual's blood circulation. If your hickey is serious or your skin is sensitive, it may take longer to heal.

If the hickey is formed within 24 hours, it is best to use a towel for cold compress to promote blood coagulation and reduce blood exudation. You can also gently press the hickey with a freezing spoon, but it is best not to touch the skin directly with ice cubes.

If the hickey has been formed for more than 24 hours, it is best to apply hot compress with a towel to promote the absorption of congestion in the tissue, or you can choose to gently kiss the hickey with a warm towel to help the skin repair itself faster.