The pepper spray is a very irritant staff to your eyes. If you have some normal saline, you would use it to wash the most part of the pepper out of your eyes. Besides, a wonderful way for you to clean your eyes there, it would also decrease the pain. Please softly closes your eyes, and cough for a short while, the foreign material will get out mostly. Then prepare a large tub of water, and put your eyes under the water surface. Then, you can blink your eyes frequently after that. After all the pepper spray get out of your eyes, you can use a humid towel on your eyes to relief the pain feeling. It will get well soon. If there have no trauma, there will no permanent damages with your eyes.