just let the tear gas dry bro, fluids activate chemicals

Pro tip: if you ever happen to get sprayed in the face with tear gas or chemical sprays it’s not the best thing to put water or milk on your face. Fluid activates the chemicals. The best thing to do is to not touch it and let it air dry. Then it can be gently wiped off with a dry cloth. While the spray is still wet it is still releasing toxins. Once it dries it’s no longer potent.