What is the appropriate initial action if dry chemical is found on the skin?

When dry chemical is found on the skin, the most appropriate initial action is to brush it away. This is crucial because if water is applied directly to dry chemicals, it can activate the chemical compounds, potentially worsening the skin irritation or chemical burn. Brushing the dry chemical off helps to remove it from the skin without activating it, thereby reducing the risk of further injury.

It's important to note that after brushing off the chemical, the affected area should be thoroughly washed with water to remove any remaining residues. However, the immediate step of brushing it away is essential to prevent further harm. Covering it with a sterile dressing or applying oil could trap the chemical against the skin, which could lead to more irritation or a chemical reaction. Therefore, the method of brushing it away is the safest initial response in this situation.