Most people figure that they only have two options in this situation. Wrong! Rather than washing off all of your hard work to start from scratch or heading out looking like Bozo, you can opt for this quick fix trick:
If you used powdered blush, try brushing over a liberal amount of translucent powder to diffuse the color from your cheeks. If you used cream blush, tone down the color by sponging over an ever-so slight amount of liquid foundation.
Remember, a little bit of blush can go a long way.