Hi Lynette, Thanks for contacting us! There are a couple of things you can try:
– The Touch-Up tab > Dodging tool, with Shadows selected from the dropdown. This will work well on subtle shadows.
– The Touch-Up tab > Clone tool. First click on an area of the face without shadow, and then carefully paint over the area with shadow. This will work well on less subtle shadows. You will need to be careful using the tool and it can take a little practice.