Healing tool - Photoshop

I have used the healing brush tool in Photoshop to clear the person's face. It is simple and easy to use: first paste a photograph into Photoshop, then alter the size of the tool next to where you are going to use it, it needs to be the same size as what you are clearing. Once you have chosen the size you need to hold down the Alt key on your keyboard and click your mouse next to where you are going to clear, and then click over the area you are clearing. You will need to repeat this process each time you want to clear something.