When treating exposure to OC, which substance should NOT be used on the skin?

The recommendation against using soaps containing oils in treating exposure to OC (oleoresin capsicum, commonly known as pepper spray) is based on the properties of both the OC and the soaps. OC is an oil-based substance, and using oily soaps can trap the OC on the skin, potentially worsening the irritation rather than alleviating it.

Other methods like rinsing with water, using baby shampoo, or applying a cold compress can help in removing the OC and soothing the affected area. Water can help flush the irritant away, while baby shampoo can work to emulsify the oils and assist in breaking down the OC. A cold compress may provide relief from the burning sensation caused by the exposure. However, oily soaps prevent effective removal of the irritant, making them unsuitable for treating OC exposure.