Step-By-Step Instructions:
1. Open a photograph of a person's face in Photoshop.
2. Select the Polygonal Lasso tool.
3. Using the Lasso, create a selection area for the birthmark on the person's skin.
4. Goto Select > Modify > Smooth. Choose a Radius number to smooth out the selection a bit. (I chose my Radius at 2).
5. Goto Image > Adjustments > Color Balance.
6. Adjust the slider to the Magenta side. Do this for the Shadows and Midtones.
7. Goto Image > Adjustments > Hue/Saturation.
8. Click OK to accept color changes and you should now have your birthmark.
