Not sure about that paper - it recommends ocular irrigation (with water) for OC gas… the exact thing you mentioned hurting so bad in your first response. The thing to remember here is that a lot of the discourse on this doesn’t distinguish between the use of a liquid to flood particles away from skin and membranes through it’s kinetic action (possible with CS gas and very necessary with white phosporous) and relying on the chemical properties of the liquid itself to bring any kind of relief.