Open Your Portrait
After opening your portrait on Photoshop make a duplicate of the image twice by pressing Ctrl + J two times, because we don’t want to affect the original image.
Naming the layers
Edit the upper layer name to ‘High Frequency’ and lower layer to ‘Low Frequency’. Hide the upper layer by clicking on the eyeball icon.
Applying Gaussian Blur Effect
Select the lower layer and go to the Filter and click on Blur then select Gaussian Blur and drag the slider to right to get a slightly blurry effect so that wrinkles and pimples disappear. Now bring back the visibility of the upper layer and select it.
Selecting the upper layer, in our case ‘High Frequency’ go to Image and click on apply image from the drop down menu. When the dialog box appears, select ‘Low frequency’ and for blending mode select ‘Subtract’. The Scale should be 1 or 2 and offset 128. After altering all the values properly, click on OK. You will notice the upper layer turns to grey embossed type. Now change the blending mode of the upper layer to ‘Linear Light’. As soon as you change it your photo gets back to its original appearance.
Selecting Lasso Tool
Now select the ‘Lower Frequency’ layer and the select Lasso tool, change the value of Feather of Lasso tool to 25 or 27. Cover the forehead of your portrait by drawing with the lasso tool. Now go to Filter again and select Blur then Gaussian Blur. Drag the slider to vanish all the spots and pimples over the forehead. When you feel happy with the result, click OK. Now you can cover the areas on chin and cheek by drawing with lasso tool, apply the preset Gaussian effect by pressing Ctrl + F. If you can do it properly, you will get a spotless beauty at the end.
Editing pimples and dark spots
Select the upper layer and pick the Spot Healing Brush tool from tool menu, make the size of brush slightly bigger than the pimple or spot and holding the Alt key click on a spotless area near to the pimple and then release the Alt key and click on the pimple. In this process you will get rid of all the pimples and spots on the face.