Pepper spray on your shit? When you get home strip that down and drop it straight into the wash. Scrub you and anything you didn’t put into the wash with detergent. If your eyes have it, gently run clean cold water over them for a while.
Pepper spray comes in a few forms. Bear spray is often oil. It offgases for hours (days IMHO). Gotta use detergents to get it out of stuff, or flush it for a long time with water. Pepper balls are often pepper dust, so rinsing and brushing can help.