Here is a step-by-step guide on how to cover a hickey without green concealer:

1. Brush the hickey and surrounding area with a stiff-bristled toothbrush. Do this gently and lightly to increase the circulation around the area.
2. Wait 15-20 minutes. The redness and swelling will spread, but it will tone down if you wait.
3. Apply a cold compress to the hickey. Leave it there for another 15-20 minutes.
4. Repeat if necessary.
5. You can use lipstick or eyeshadow as color corrector. Depending on the stage and color of hickey whether that be purple or green, you can take a matte orange lipstick or cream eyeshadow to cover the hickey.
6. This step is based on your skin tone and the tone of the hickey. You want to use the color opposite the color of the hickey on the color wheel. If the hickey is more purple use a yellow color corrector. If the hickey is red, then you want to use a green color corrector.