When to seek emergency help

Call 911 or seek immediate care for major chemical burns, which:

• May be deep, involving all layers of the skin.
• Are larger than 3 inches (about 8 centimeters) in diameter.
• Cover the hands, feet, face, groin, buttocks, or a major joint or encircles an arm or leg.

If you're unsure that you've been exposed to a toxic chemical, call a poison control center then call 911. In the United States, the Poison Help number is 800-222-1222. If you seek emergency medical help, take the container or the name of the chemical with you.