Not Medical Advice: According to Mayo Clinic, to treat chemical burn, you must:
Remove the chemical causing the burn while protecting yourself. For dry chemicals, brush off any remaining material. Wear gloves or use a towel or other suitable object, such as a brush.
Remove contaminated clothing or jewelry to prevent further burning.
Rinse the burn immediately. Run a gentle, steady stream of cool tap water over the burn for 10 or more minutes. A shower may be an effective way to do this. Always protect your eyes.
Loosely apply a bandage or gauze.
If needed, take an over-the-counter pain reliever, such as ibuprofen (Advil, Motrin IB, others), naproxen sodium (Aleve) or acetaminophen (Tylenol, others).
Consider a tetanus shot. Make sure that your tetanus booster is up to date. Doctors recommend people get a tetanus shot at least every 10 years.
If you're unsure whether a substance is toxic, call Poison Help at 800-222-1222 in the United States. If you seek emergency medical help, take the chemical container or the name of the chemical with you to the emergency department.
Check out some Safety Tips for Handling Chemicals, shared by MCCAA.