For protective measures, what should not be done after an acid spill on the skin?

Applying a neutralizing base after an acid spill on the skin is not advisable because it can cause an exothermic reaction, further damaging the skin. When an acid comes into contact with a neutralizing base, the chemical reaction can produce heat and additional harmful substances, which can exacerbate the injury rather than alleviate it.

In the event of an acid spill on the skin, the best immediate action is to flush the area with copious amounts of water to dilute and remove the acid. Calling poison control is also crucial for further guidance on handling the situation safely. Immersing the affected area in cold water, if practical, can help reduce pain and prevent further injury. Covering the area with absorbent material may also be done to protect the skin once it has been flushed. However, introducing a neutralizing agent directly can increase the risk of further chemical injury and should be avoided.