A hickey is essentially a clot, meaning the healing process can be sped up by increasing blood flow to the area, which can result in the clotted blood being carried to the kidneys to be processed, according to HealthGuidance. Increased blood flow to the area can be accomplished by applying a warm compress to the area three times a day for 15 minutes. The compress should be rewarmed during this 15 minutes to ensure the area stays warm.
Another treatment method, especially after applying heat throughout the day, involves massaging the area of the hickey with a comb, states HealthGuidance. By applying the comb's teeth to the area and rubbing, this stimulates more blood flow, speeding up healing time and instigating the process of removing the clotted blood to the kidneys.
If the formation of a hickey is noticed immediately, the bruising can be prevented or reduced by applying immediate blunt pressure to the area, which forces the blood from busted capillaries back down below the layers of the skin. Applying ice to the area can cause the capillaries to constrict, reducing blood flow into the clot. Applying cooling balm can also achieve this effect and can act as a long-term cool compress after the ice has been initially applied.