Photoshop can be a great tool. It can take away blemishes, and it can take an average photo and make it look professional.
However, there is a point in our opinion, especially with portraits, that the tool can be overused. If your face starts to look like Pinocchio you may want to ask for a little less photoshop. I'm not talking about the nose getting bigger though. I'm talking about your skin looking like it's plastic, or wood, or lets just say - FAKE!
If that is what you are wanting, then by all means.
At Wilkerson Studios we do use Photoshop to touch up images, but we only use it to a point, and sometimes we don't use it at all - just depends on the image. If it makes the picture look better, then great. If not, then our philosophy is to leave it alone.
There's much beauty in the human body. God created it. So let's not make it look fake.