Neutralizing Acid on Skin: Water, Soap, Baking Soda, Vinegar, Antacids, and When to Seek Care

Immediate steps for acid skin contact:

1. Copious cool water flush – ≥15 min; removes and dilutes chemical.
2. Mild soap and water – Cleans residual acid.
3. Baking soda paste (NaHCO₃) – Weak base; neutralizes many acids.
4. Dilute vinegar – For alkali (base) exposure, not acid.
5. Antacid paste (CaCO₃/Mg(OH)₂) – For strong acids (HCl, H₂SO₄).
6. Specific neutralizer – If acid identity known (e.g., HF → calcium gluconate gel).
7. Emergency care – For strong/concentrated acids, large area, deep burns, or persistent pain.

Always prioritize prolonged water irrigation first. Know chemical hazards in your workplace/home.