Yes, makeup can be an effective way to conceal a hickey temporarily. Start by applying a colour corrector with a green or yellow undertone to neutralise the red or purple colour of the hickey. Then, apply a foundation that matches your skin tone and blend it carefully over the hickey. Finally, set the makeup with a translucent powder for long-lasting coverage. Keep in mind that makeup only provides a temporary solution and may need to be reapplied throughout the day.