DrySee isn’t just a waterproof bandage. If liquid makes its way in, the bandage’s gauze changes colors from white to blue, letting wearers know their wound is wet. CEO Brad Greer tells CNN why ...

Look first. Don’t touch. The person may still be in contact with the electrical source. Touching the person may pass the current through you. Turn off the source of electricity if possible.

In this Q & A, ABCNEWS Medical Editor Dr. Tim Johnson provides the details on how to prevent and treat burns as part of Good Morning America's "First Aid Test" series.