One of the best and easiest ways to fix "hot spots" on the photograph
- Take Healing Brush Tool (J) and in Options bar for Mode choose DARKEN and
check the option "SAMPLE ALL LAYERS".
- Open the new layer, set your healing brush tool hardness to 0% (is soft
brush) and size of the brush (use brush size slightly bigger than hot spot)
- with OPTION+click(MAC) or ALT+click (PC) choose skin tone you like and paint
on areas with Healing Brush tool.
For "painting" i mean click on areas where you want to cover the
hot spots. What is great about this technique is that you have that cloned pixels
on separate layer and you can apply slight Gaussian Blur filter, lower the opacity
of layer to achieve great end result.