Treatment of skin reaction to tear gas/pepper spray %25 baking soda in cool/cold water.. do NOT use hot water!! Hot water will open pores in the skin and increase the reaction. For the Eyes rinse with cold water only. 1 box of baking soda to about 3-4 gallons of water Also recommended to use baby shampoo to clean and this is safe in and around eyes. I have heard milk will also work to calm the reaction. For pepperspray (dont know if this will work on tear gas) use a half liquid antacid (like Maalox) and half water. irrigate from the inside corner of the eye towards the outside. this will also work for the mouth and throat and also skin. Also is best to remove all contaminated clothing once out of the area. Do not pull shirts over face as this will increase the residue on the face. cut off shirts. Do not use hot water when washing these chemicals off as it will increase the painful reaction. Cool to cold water is best as it will calm irritation while flushing chemicals away.